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Have you considered https: //www. pflotran. org/documentation/user_guide/how_to/installation/installation. html On May 7, 2024, at 2: 22 PM, Shatanawi, Sawsan Muhammad via petsc-users <petsc-users@ mcs. anl. gov> wrote:
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<meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div><br></div> Have you considered <a href="https://urldefense.us/v3/__https://www.pflotran.org/documentation/user_guide/how_to/installation/installation.html__;!!G_uCfscf7eWS!eZkBlApyezAyEBaDxGemEyUmTe87omvkv59rrf0Mq8L4bOTqEL9wynuMJ1ci9kRDOqucZBiYdGT2tRTVuCSJdSs$">https://www.pflotran.org/documentation/user_guide/how_to/installation/installation.html</a><div><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On May 7, 2024, at 2:22 PM, Shatanawi, Sawsan Muhammad via petsc-users <petsc-users@mcs.anl.gov> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><div dir="ltr" id="pfptBannery32hwk8" style="color-scheme: revert !important; writing-mode: revert !important; -webkit-ruby-position: revert !important; color: revert !important; font-family: revert !important; font-feature-settings: revert !important; 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height: unset !important; inline-size: unset !important; inset-block: unset !important; inset-inline: unset !important; margin-block: unset !important; margin: unset !important; margin-inline: unset !important; max-block-size: unset !important; max-height: unset !important; max-inline-size: unset !important; max-width: unset !important; min-block-size: unset !important; min-height: unset !important; min-inline-size: unset !important; min-width: unset !important; overscroll-behavior-block: unset !important; overscroll-behavior-inline: unset !important; overscroll-behavior: unset !important; padding-block: unset !important; padding: unset !important; padding-inline: unset !important; scroll-margin-block: unset !important; scroll-margin: unset !important; scroll-margin-inline: unset !important; scroll-padding-block: unset !important; scroll-padding: unset !important; scroll-padding-inline: unset !important; width: unset !important;">This Message Is From an External Sender</div><div id="pfptBannery32hwk8" style="color-scheme: unset !important; 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-webkit-user-select: unset !important; word-spacing: unset !important; background-clip: unset !important; background-origin: unset !important; box-shadow: unset !important; mask-composite: unset !important; mask-mode: unset !important; text-combine-upright: unset !important; -webkit-backdrop-filter: unset !important; -webkit-background-clip: unset !important; -webkit-background-origin: unset !important; -webkit-box-shadow: unset !important; mask-size: unset !important; -webkit-mask: unset !important; -webkit-mask-composite: unset !important; -webkit-mask-source-type: unset !important; -webkit-text-combine: unset !important; display: block !important; visibility: visible !important; opacity: unset !important; background-color: rgb(208, 216, 220) !important; block-size: unset !important; border-block: unset !important; border-radius: unset !important; border-end-end-radius: unset !important; border-end-start-radius: unset !important; border-inline: unset !important; border-start-end-radius: unset !important; border-start-start-radius: unset !important; inset: unset !important; contain-intrinsic-block-size: unset !important; contain-intrinsic-size: unset !important; contain-intrinsic-inline-size: unset !important; height: unset !important; inline-size: unset !important; inset-block: unset !important; inset-inline: unset !important; margin-block: unset !important; margin-bottom: unset !important; margin-inline: unset !important; margin-left: unset !important; margin-right: unset !important; max-block-size: unset !important; max-height: unset !important; max-inline-size: unset !important; max-width: unset !important; min-block-size: unset !important; min-height: unset !important; min-inline-size: unset !important; min-width: unset !important; overscroll-behavior-block: unset !important; overscroll-behavior-inline: unset !important; overscroll-behavior: unset !important; padding-block: unset !important; padding: unset !important; padding-inline: unset !important; scroll-margin-block: unset !important; scroll-margin: unset !important; scroll-margin-inline: unset !important; scroll-padding-block: unset !important; scroll-padding: unset !important; scroll-padding-inline: unset !important; width: unset !important; margin-top: 2px !important;">This message came from outside your organization.</div></div><div style="height: 0px; clear: both !important; display: block !important; visibility: hidden !important; line-height: 0 !important; font-size: 0.01px !important;"></div></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36); background-color: white;">Hello everyone,</span></div><p style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);"> </span></p><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);">I hope this email finds you well.</span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);"><br><br></span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);"> My Name is Sawsan Shatanawi,</span><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);"> and I was developing a Fortran code for simulating groundwater flow in a 3D system with nonlinear behavior. I solved the nonlinear system using the PCG solver and Picard iteration, but I did not get good results although I checked my matrix and RHS and everything, I decided to change my solver to Newton Rapson method.<br>I checked PETSc documents but I have a few questions:<br>1) My groundwater system is time-dependent, so should I use TS only instead of SNES?<br>2) My system has its deltaT, would using deltaT as dt affect my solver, or is it better to use TS-PETSc dt? Also, would using PETSc dt affect the simulation of the groundwater system</span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);">3) I want my Jacobian matrix to be calculated by PETSc automatically</span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);">4) Do I need to define and calculate the residual vector?</span></div><p style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);"> </span></p><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);">My A-Matrix contains coefficients and external sources and my RHS vector includes the boundary conditions <br></span><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);"><br><br></span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(36, 36, 36);">Please find the attached file contains a draft of my code</span><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);"><br><br></span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);">Thank you in advance for your time and help.</span></div><div style="margin: 0in 0in 0.0001pt; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);"><br></span></div><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; background-color: white; padding: 0in; border-width: 1pt; border-style: solid; border-color: rgb(217, 217, 227);"><p style="margin: 15pt 0in; line-height: normal; background-color: white; padding: 0in; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);">Best regards,</span></p><p style="margin: 15pt 0in; line-height: normal; background-color: white; padding: 0in; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Segoe UI", sans-serif; font-size: 11.5pt; color: rgb(55, 65, 81);"> Sawsan</span></p></div><div class="elementToProof" style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; line-height: normal; background-color: white; margin: 0in 0in 0.0001pt; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><br></div><div id="appendonsend" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"></div><hr tabindex="-1" style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; display: inline-block; width: 1120.125px;"><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;"></span><div id="divRplyFwdMsg" dir="ltr" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu">sawsan.shatanawi@wsu.edu</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Tuesday, January 16, 2024 10:43 AM<br><b>To:</b><span class="Apple-converted-space"> </span>Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com">junchao.zhang@gmail.com</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev">bsmith@petsc.dev</a>>; Matthew Knepley <<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>>; Mark Adams <<a href="mailto:mfadams@lbl.gov">mfadams@lbl.gov</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div dir="ltr" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div class="x_elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Hello all,<br><br>Thank you for your valuable help. I will do your recommendations and hope it will run without any issues.</div><div class="x_elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><br></div><div class="x_elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Bests,<br>Sawsan</div><div class="x_elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> </div><div id="x_appendonsend"></div><hr tabindex="-1" style="display: inline-block; width: 1120.125px;"><div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com">junchao.zhang@gmail.com</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Friday, January 12, 2024 8:46 AM<br><b>To:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev">bsmith@petsc.dev</a>>; Matthew Knepley <<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>>; Mark Adams <<a href="mailto:mfadams@lbl.gov">mfadams@lbl.gov</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div dir="ltr">Hi, Sawsan,<div> First in test_main.F90, you need to call VecGetArrayF90(temp_solution, H_vector, ierr) and VecRestoreArrayF90 (temp_solution, H_vector, ierr) as Barry mentioned.<br><div> Secondly, in the loop of test_main.F90, it calls GW_solver(). Within it, it calls PetscInitialize()/PetscFinalize(). But without MPI being initialized, PetscInitialize()/PetscFinalize()<b><span class="Apple-converted-space"> </span>can only be called once.</b></div><div><font face="monospace"> do timestep =2 , NTSP<br> call GW_boundary_conditions(timestep-1)<br> !print *,HNEW(1,1,1)<br> call GW_elevation()<br> ! print *, GWTOP(2,2,2)<br> call GW_conductance()<br> ! print *, CC(2,2,2)<br> call GW_recharge()<br> ! print *, B_Rech(5,4)<br> call GW_pumping(timestep-1)<br> ! print *, B_pump(2,2,2)<br> call GW_SW(timestep-1)<br> print *,B_RIVER (2,2,2)<br> call GW_solver(timestep-1,N)<br> call GW_deallocate_loop()<br> end do</font><br></div><div><br></div>A solution is to delete PetscInitialize()/PetscFinalize() in GW_solver_try.F90 and move it to test_main.F90, outside the do loop.<div><br></div><div><font face="monospace">diff --git a/test_main.F90 b/test_main.F90<br>index b5997c55..107bd3ee 100644<br>--- a/test_main.F90<br>+++ b/test_main.F90<br>@@ -1,5 +1,6 @@<br> program test_GW<br> <br>+#include <petsc/finclude/petsc.h><br> use petsc<br> use GW_constants<br> use GW_param_by_user<br>@@ -8,6 +9,9 @@ program test_GW<br> implicit none<br> integer :: N<br> integer :: timestep<br>+ PetscErrorCode ierr<br>+<br>+ call PetscInitialize(ierr)<br> call GW_domain(N)<br> !print *, "N=",N<br> !print *, DELTAT<br>@@ -37,4 +41,5 @@ program test_GW<br> end do<br> print *, HNEW(NCOL,3,2)<br> call GW_deallocate ()<br>+ call PetscFinalize(ierr)<br> end program test_GW</font><br></div><div><br></div><div>With that, the MPI error will be fixed. The code could run to gw_deallocate () before abort. There are other memory errors. You can install/use valgrind to fix them. Run it with valgrind ./GW.exe and look through the output</div><div><br></div><div><br></div><div>Thanks.</div><div>--Junchao Zhang<br></div><div><br></div></div></div><br><div class="x_x_gmail_quote"><div dir="ltr" class="x_x_gmail_attr">On Thu, Jan 11, 2024 at 10:49 PM Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu">sawsan.shatanawi@wsu.edu</a>> wrote:<br></div><blockquote class="x_x_gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div class="x_x_msg6313238004422759188"><div dir="ltr"><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Hello,<br><br>Thank you all for your help.<br><br>I have changed VecGetArray to VecGetArrayF90, and the location of destory call. but I want to make sure that VecGet ArrayF90 is to make a new array( vector) that I can use in the rest of my Fortran code?<br><br></div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">when I run it and debugged it, I got </div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><br></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> 5.2000000E-03</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> 50.00000</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> 10.00000</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> 0.0000000E+00</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">PETSC: Attaching gdb to /weka/data/lab/richey/sawsan/GW_CODE/code2024/SS_GWM/./GW.exe of pid 33065 on display :0.0 on machine sn16</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Unable to start debugger in xterm: No such file or directory</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"> 0.0000000E+00</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 0);">Attempting to use an MPI routine after finalizing MPICH</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">srun: error: sn16: task 0: Exited with exit code 1</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">[sawsan.shatanawi@login-p2n02 SS_GWM]$ gdb ./GW/exe</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Copyright (C) 2013 Free Software Foundation, Inc.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">License GPLv3+: GNU GPL version 3 or later <<a href="https://urldefense.com/v3/__http://gnu.org/licenses/gpl.html__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKvtraKaM$" originalsrc="https://urldefense.com/v3/__http://gnu.org/licenses/gpl.html__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKvtraKaM$" shash="Yw2mN7hWQC3K1XPN8YH8YZb/IB3/69wogiYM/Q2Oeph0cFQlR51C3pnzjEPHROff2FTZCjqqtwQpGY12XJr5vO3hEUCfZWZBRUYhXnzSLAwMl4gF09n+Fk3SUDSllJFN7TfNpf9fQSDm5OSeo9HMqCPZ2oLbnuIrw2RyK86IEO8=" target="_blank">http://gnu.org/licenses/gpl.html</a>></span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">This is free software: you are free to change and redistribute it.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">There is NO WARRANTY, to the extent permitted by law. Type "show copying"</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">and "show warranty" for details.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">This GDB was configured as "x86_64-redhat-linux-gnu".</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">For bug reporting instructions, please see:</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><<a href="https://urldefense.com/v3/__http://www.gnu.org/software/gdb/bugs/__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKjO8jNfs$" originalsrc="https://urldefense.com/v3/__http://www.gnu.org/software/gdb/bugs/__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKjO8jNfs$" shash="eB5DijySrhtlvnFYSQBciMY5NHYo7ew/4cvNNnc5CbzloZpMQ1xAt95GpbAk3w3i40tTCiTbSqPR9QanBpZjU8AaBluFOUXK2jfr/kLK59hx4ggWNpYEzs88OyNndPkzh4yObyoED/m3Pi/fQJQ6XDv9HUZZu0MHlhFTnB6yMOI=" target="_blank">http://www.gnu.org/software/gdb/bugs/</a>>...</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">./GW/exe: No such file or directory.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">(gdb) run</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Starting program:</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">No executable file specified.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Use the "file" or "exec-file" command.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">(gdb) bt</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">No stack.</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">(gdb)<br><br>If the highlighted line is the error, I don't know why when I write gdb , it does not show me the location of error</span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">The code :<span class="Apple-converted-space"> </span><a href="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKp8i33ur$" originalsrc="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!o4qS1zaFLg2L8PlawWJVyYsJpnwYHuL6SIIZsmzTO98RCzbP26HwTi_0-ipCS_D2SBG0X4gtEnM13-nbzFEFKp8i33ur$" shash="rfeyfrK1lPD4FCFzH+Njnu35ia+RENa/KPfyS0ZTMara8F344H2ia3D6XRdf6aJw9RPj8VQtMqKKLplfCUGMn58GGtOGyy/esthW6uvBPhZWeX38gRatJOtUNtfZEBZJoRvG9U9TOdXBM/T4JgrIEZX94b5BZ55STMC0SxpUSRE=" id="x_x_m_6313238004422759188OWAf2a88c8d-1aa9-f2d9-963c-456c02baba7d" target="_blank">sshatanawi/SS_GWM (github.com)</a> <br><br>I really appreciate your helps<br><br></span></div><div><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Sawsan</span></div><div id="x_x_m_6313238004422759188appendonsend"></div><hr style="display: inline-block; width: 1102.5625px;"><div id="x_x_m_6313238004422759188divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" target="_blank">bsmith@petsc.dev</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Wednesday, January 10, 2024 5:35 PM<br><b>To:</b><span class="Apple-converted-space"> </span>Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com" target="_blank">junchao.zhang@gmail.com</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>>; Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><br id="x_x_m_6313238004422759188x_lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Jan 10, 2024, at 6:49 PM, Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com" target="_blank">junchao.zhang@gmail.com</a>> wrote:</div><br><div><div dir="ltr">Hi, Sawsan,<div> I could build your code and I also could gdb it.</div><div><br></div><div>$ gdb ./GW.exe</div><div>...</div><div>$ Thread 1 "GW.exe" received signal SIGSEGV, Segmentation fault.</div>0x00007ffff1e6d44f in vecgetarray_ (x=0x7fffffffa718, fa=0x0, ia=0x7fffffffa75c, ierr=0x0) at /scratch/jczhang/petsc/src/vec/vec/interface/ftn-custom/zvectorf.c:257<br>257 *ierr = VecGetArray(*x, &lx);<br>(gdb) bt<br>#0 0x00007ffff1e6d44f in vecgetarray_ (x=0x7fffffffa718, fa=0x0, ia=0x7fffffffa75c, ierr=0x0) at /scratch/jczhang/petsc/src/vec/vec/interface/ftn-custom/zvectorf.c:257<br>#1 0x000000000040b6e3 in gw_solver (t_s=1.40129846e-45, n=300) at GW_solver_try.F90:169<br>#2 0x000000000040c6a8 in test_gw () at test_main.F90:35<div> </div><div><font color="#ff0000">ierr=0x0 <span class="Apple-converted-space"> </span></font><font>caused the segfault. See </font><a href="https://urldefense.com/v3/__https://petsc.org/release/manualpages/Vec/VecGetArray/*vecgetarray__;Iw!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ9Km12jA$" originalsrc="https://urldefense.com/v3/__https://petsc.org/release/manualpages/Vec/VecGetArray/*vecgetarray__;Iw!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ9Km12jA$" shash="eTMT/2IvtfZNSLkFumxiDqpRSfF/dgzmXotN+byvDZRxq/oemvkHqAoRDJ6VBQDDgt8NDoy4uaJUa/2nLvLg63RpYKZTYAE/FXqA5XMXVcQghCk2cdxNU3znqka7CkTfwKg7j36WcSIvZae3GsncanykV1g7dy693xt9SULqdzU=" target="_blank">https://petsc.org/release/manualpages/Vec/VecGetArray/#vecgetarray</a>, you should use VecGetArrayF90 instead.<br></div><div><br></div><div>BTW, Barry, the code<span class="Apple-converted-space"> </span><a href="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM/blob/main/GW_solver_try.F90*L169__;Iw!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZh2eAi4o$" originalsrc="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM/blob/main/GW_solver_try.F90*L169__;Iw!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZh2eAi4o$" shash="ke6goHMtptjx+CF9yL/R/sT9aCkk5ug5hGph6iJ3ifOSAGLKfOEA6sk77fVkMpX/xyZMIUB5Gy9b03uElW8dhgqfO5/VzeFcnvak8tbHE0vTSkjXrE32O5UoQRLeAuU/Yv/w+5MShST2VC6pH0V0rrJ0g8hbBidUrHGFbsOmCrU=" target="_blank">https://github.com/sshatanawi/SS_GWM/blob/main/GW_solver_try.F90#L169</a><span class="Apple-converted-space"> </span>has "call VecGetArray(temp_solution, H_vector, ierr)". I don't find petsc Fortran examples doing VecGetArray. Do we still support it?</div></div></div></blockquote><div><br></div> This is not the correct calling sequence for VecGetArray() from Fortran. </div><div><br></div><div> Regardless, definitely should not be writing any new code that uses VecGetArray() from Fortran. Should use VecGetArrayF90().</div><div><br><blockquote type="cite"><div><div dir="ltr"><div><br></div><div><div><div dir="ltr"><div dir="ltr">--Junchao Zhang</div></div></div><br></div></div><br><div><div dir="ltr">On Wed, Jan 10, 2024 at 2:38 PM Shatanawi, Sawsan Muhammad via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:<br></div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">Hello all,</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">I hope you are doing well.</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">Generally, I use gdb <the name of my exe.file> to debug the code.</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"> I got the attached error message.</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">I have tried to add the flag -start_in_debugger in the make file, but it didn't work, so it seems I was doing it in the wrong way</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">This is the link for the whole code: <a href="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" originalsrc="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" shash="FLwlmhpwFDsmWuDZID6fKEI46YwJ6CEVHJBvcIEUDIW3AOTXlxCYofuA8lQTJ/tebHAtGpNGIKiUMXt+GL3gvn0RL+lKsrkJYWP4XO9HSc5oCGbRUsyUaWGo69Ae9SpaoDYvzBFPkxPatWaBsvBBPI8tAHTouaaxR68Mm8Dqfsg=" id="x_x_m_6313238004422759188x_m_5694742774502394814OWA37645568-445c-55da-2f91-abc541b1f4d6" target="_blank" style="margin: 0px;">sshatanawi/SS_GWM (github.com)</a></span></div><div style="font-style: normal; font-weight: 400; font-size: medium; margin: 0px; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; word-spacing: 0px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPBorder_GTaHR0cHM6Ly9naXRodWIuY29tL3NzaGF0YW5hd2kvU1NfR1dN" style="margin: 16px 0px; max-width: 800px; min-width: 424px;"><table id="x_x_m_6313238004422759188x_m_5694742774502394814LPContainer867037" style="padding: 12px 36px 12px 12px; width: 600px; border-width: 1px; border-style: solid; border-color: rgb(200, 200, 200); border-radius: 2px;"><tbody><tr valign="top" style="border-spacing: 0px;"><td><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPImageContainer867037" style="margin: 0px 12px 0px 0px; height: 120px; overflow: hidden;"><a id="x_x_m_6313238004422759188x_m_5694742774502394814LPImageAnchor867037" href="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" originalsrc="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" shash="isDxSGgS3nK2npqU3rzu1ZTz5Q/oQ2lSy6glpeM8s50e1l5wVug1hDei/E/gAENeGg3ZD6oRzEBrS1uuEwpL+IcrTwxAFhlu1rl6HVxwSgrIX6XJwCeEeGGLSfBeZt/nKSIAR13CM4hNhthq9lSmjaDHb6fQLKcg3pDMu+szwlM=" target="_blank" style="margin: 0px;"><img id="x_x_m_6313238004422759188x_m_5694742774502394814LPThumbnailImageId867037" alt="" height="120" width="240" src="https://opengraph.githubassets.com/9eb6cd14baf12f04848ed209b6f502415eb531bdd7b3a5f9696af68663b870c0/sshatanawi/SS_GWM" style="margin: 0px; display: block;"></a></div></td><td style="width: 289.6px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPTitle867037" style="font-weight: 300; font-size: 21px; font-family: wf_segoe-ui_light, "Segoe UI Light", "Segoe WP Light", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; margin: 0px 8px 12px 0px;"><a id="x_x_m_6313238004422759188x_m_5694742774502394814LPUrlAnchor867037" href="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" originalsrc="https://urldefense.com/v3/__https://github.com/sshatanawi/SS_GWM__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ1Veab3M$" shash="R7iq0vLmqA5uzT4Yhkx/uS6vZ5JeBm9WqUdYDe25+4uB228z+MCFgXsSQ2j195jfqKTS5V/9rLKo+/ySIhA6VCOqkxNyU58WZgg2LWLIsnZKfqQzL1+mLfc9Bfrs83c6EG/nHas1NxcUOM87IunNjf3O/z8RZs0nS998tLOrRH4=" target="_blank" style="margin: 0px; text-decoration: none;">GitHub - sshatanawi/SS_GWM</a></div><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPDescription867037" style="font-size: 14px; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; margin: 0px 8px 12px 0px; max-height: 100px; overflow: hidden; color: rgb(102, 102, 102);">Contribute to sshatanawi/SS_GWM development by creating an account on GitHub.</div><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPMetadata867037" style="font-size: 14px; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; margin: 0px; color: rgb(166, 166, 166);"><a href="https://urldefense.com/v3/__http://github.com/__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ8rcrPiA$" originalsrc="https://urldefense.com/v3/__http://github.com/__;!!JmPEgBY0HMszNaDT!tqBApprMfYxwNz4Zvnk8coNE5AeWjA9wSdAM7QJcIIVP1z0VDsVIalo4Sew2b0fW3bZtTAbPh-h0MUsZ8rcrPiA$" shash="mWGnWyvZz+gmGJRm3ZSa1fIl1Oe1uv/FraARdnPINna3UyQH+8OfZPzylj8Xkpr9/vmfmclaZI88i1EyEK5JpeUUI0zun2K1pn2hTZCTavsyGdnAY10ZH9vJ9HRFwHIBqgulfIWog50KH7ng1HFoHMDET6Hwblr8wg46NkF9ORw=" target="_blank">github.com</a></div></td></tr></tbody></table><div id="x_x_m_6313238004422759188x_m_5694742774502394814LPCloseButtonContainer867037" title="Remove link preview" role="button"><i aria-hidden="true" id="x_x_m_6313238004422759188x_m_5694742774502394814LPCloseButton867037"></i></div></div></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">You can read the description of the code in " </span><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400; color: rgb(12, 100, 192);">Model Desprciption.pdf</span><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">"</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">the compiling file is </span><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400; color: rgb(12, 100, 192);">makefile_f90</span><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"> where you can find the linked code files</span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;"><br></span></div><div style="text-align: left; margin: 0px;"><span style="letter-spacing: normal; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; font-weight: 400;">I really appreciate your help<br><br>Bests,<br>Sawsan</span></div><div id="x_x_m_6313238004422759188x_m_5694742774502394814appendonsend"></div><hr style="display: inline-block; width: 1075.203125px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Friday, January 5, 2024 4:53 AM<br><b>To:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div dir="ltr">This is a segv. As Matt said, you need to use a debugger for this or add print statements to narrow down the place where this happens.<div><br></div><div>You will need to learn how to use debuggers to do your project so you might as well start now.</div><div><br></div><div>If you have a machine with a GUI debugger that is easier but command line debuggers are good to learn anyway.</div><div><br></div><div>I tend to run debuggers directly (eg, lldb ./a.out -- program-args ...) and use a GUI debugger (eg, Totalview or DDT) if available.</div><div><br></div><div>Mark</div><div><br></div></div><br><div><div dir="ltr">On Wed, Dec 20, 2023 at 10:02 PM Shatanawi, Sawsan Muhammad via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:<br></div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Hello Matthew,<br><br>Thank you for your help. I am sorry that I keep coming back with my error messages, but I reached a point that I don't know how to fix them, and I don't understand them easily.<br>The list of errors is getting shorter, now I am getting the attached error messages </div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><br></div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Thank you again,<br><br></div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Sawsan</div><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399appendonsend"></div><hr style="display: inline-block; width: 1057.640625px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Wednesday, December 20, 2023 6:54 PM<br><b>To:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" target="_blank">bsmith@petsc.dev</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div dir="ltr"><div dir="ltr">On Wed, Dec 20, 2023 at 9:49 PM Shatanawi, Sawsan Muhammad via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:<br></div><div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif;">Hello Barry,<br><br>Thank you a lot for your help, Now I am getting the attached error message.</span></div></div></div></blockquote><div><br></div><div>Do not destroy the PC from KSPGetPC()</div><div><br></div><div> THanks,</div><div><br></div><div> Matt</div><div> </div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif;">Bests,<br>Sawsan</span></div><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543appendonsend"></div><hr style="display: inline-block; width: 1040.078125px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span class="Apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" target="_blank">bsmith@petsc.dev</a>><br><b>Sent:</b><span class="Apple-converted-space"> </span>Wednesday, December 20, 2023 6:32 PM<br><b>To:</b><span class="Apple-converted-space"> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span class="Apple-converted-space"> </span>Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>>;<span class="Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span class="Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div><br></div>Instead of <div><br></div><div><div> call PCCreate(PETSC_COMM_WORLD, pc, ierr)</div><div> call PCSetType(pc, PCILU,ierr) ! Choose a preconditioner type (ILU)</div><div> call KSPSetPC(ksp, pc,ierr) ! Associate the preconditioner with the KSP solver</div><div><br></div><div>do</div><div><br></div><div> call KSPGetPC(ksp,pc,ierr)</div><div> call PCSetType(pc, PCILU,ierr)</div><div><br></div><div>Do not call KSPSetUp(). It will be taken care of automatically during the solve</div><div><br></div><div><br></div><div><div><br><blockquote type="cite"><div>On Dec 20, 2023, at 8:52 PM, Shatanawi, Sawsan Muhammad via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:</div><br><div><div style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Hello, <br>I don't think that I set preallocation values when I created the matrix, would you please have look at my code. It is just the petsc related part from my code.<br>I was able to fix some of the error messages. Now I have a new set of error messages related to the KSP solver (attached)<br><br>I appreciate your help</div><div style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"><br></div><div style="font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;">Sawsan</div><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_appendonsend" style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;"></div><hr style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; display: inline-block; width: 934.906px;"><span style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; float: none; display: inline;"></span><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_divRplyFwdMsg" dir="ltr" style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;"><font face="Calibri, sans-serif" style="font-size: 11pt;"><b>From:</b><span> </span>Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>><br><b>Sent:</b><span> </span>Wednesday, December 20, 2023 6:44 AM<br><b>To:</b><span> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code</font><div> </div></div><div style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;"><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); background-color: rgb(255, 235, 156); padding: 1px;"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div dir="ltr">Did you set preallocation values when you created the matrix?<div>Don't do that.</div></div><br><div><div dir="ltr">On Wed, Dec 20, 2023 at 9:36 AM Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>> wrote:<br></div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div dir="ltr">Hello, </div><div dir="ltr"><br></div><div dir="ltr">I am trying to create a sparse matrix( which is as I believe a zero matrix) then adding some nonzero elements to it over a loop, then assembling it </div><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_x_m_-677654408871201876ms-outlook-mobile-signature"><div><br></div>Get<span> </span><a href="https://urldefense.com/v3/__https://aka.ms/o0ukef__;!!JmPEgBY0HMszNaDT!uUJ_jeYf45gcXDGR_PeMjhU7hbd_fKcXJPn0pM9eb-YQihKNYuXMYM9x-hglsbXsCFIwNBWgHXdetHODupsOloE$" originalsrc="https://urldefense.com/v3/__https://aka.ms/o0ukef__;!!JmPEgBY0HMszNaDT!uUJ_jeYf45gcXDGR_PeMjhU7hbd_fKcXJPn0pM9eb-YQihKNYuXMYM9x-hglsbXsCFIwNBWgHXdetHODupsOloE$" shash="zqhJ/KQrH0HxFZ5lBgQjyvfWQbG9RQK4AaDjsXWVp9mxi3ZyFa2CzjZDijjfC66UU6a1ZipCkxazY/kPXaJzYRaCNUZEKSnAZkQtelKepLSwHHQQProEnWRFu4uwYvMWNHOzjF0jR2qv6qWSUTCDTB2rLpoU5ql6F2nnc1ohbw8=" target="_blank">Outlook for iOS</a></div><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_x_m_-677654408871201876mail-editor-reference-message-container"><hr style="display: inline-block; width: 917.344px;"><div id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_x_m_-677654408871201876divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"><b>From:</b><span> </span>Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>><br><b>Sent:</b><span> </span>Wednesday, December 20, 2023 2:48 AM<br><b>To:</b><span> </span>Shatanawi, Sawsan Muhammad <<a href="mailto:sawsan.shatanawi@wsu.edu" target="_blank">sawsan.shatanawi@wsu.edu</a>><br><b>Cc:</b><span> </span><a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a><span> </span><<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span> </span>Re: [petsc-users] Help with Integrating PETSc into Fortran Groundwater Flow Simulation Code<div> </div></font></div><div style="margin-top: 0px; margin-bottom: 0px; border: 1px solid rgb(255, 202, 202); padding: 1px; background-color: rgb(255, 235, 156);"><span style="font-size: 10pt;"><b>[EXTERNAL EMAIL]</b></span></div><div><div dir="ltr">I am guessing that you are creating a matrix, adding to it, finalizing it ("assembly"), and then adding to it again, which is fine, but you are adding new non-zeros to the sparsity pattern.<div>If this is what you want then you can tell the matrix to let you do that.</div><div>Otherwise you have a bug.</div><div><br></div><div>Mark</div></div><br><div><div dir="ltr">On Tue, Dec 19, 2023 at 9:50 PM Shatanawi, Sawsan Muhammad via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:<br></div><blockquote style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div><div dir="ltr"><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"></div>Hello everyone,<div><br></div><div>I hope this email finds you well.</div><div><span><br></span></div><div><span> My Name is Sawsan Shatanawi,</span><span><span style="display: inline; color: rgb(55, 65, 81);"> and I am currently working on developing a Fortran code for simulating groundwater flow in a 3D system. The code involves solving a nonlinear system, and I have created the matrix to be solved using the PCG solver and Picard iteration. However, </span></span><span>when I tried to assign it as a PETSc matrix I started getting a lot of error messages.</span></div><div><br></div><div>I am kindly asking if someone can help me,<span style="display: inline; color: rgb(55, 65, 81);"> I would be happy to share my code with him/her.</span></div><div><span><br></span></div><div><span>Please find the attached file contains a list of errors I have gotten</span></div><div><span style="color: rgb(55, 65, 81);"><br></span></div><div><span style="color: rgb(55, 65, 81);">Thank you in advance for your time and assistance.</span><br></div><div><span><p style="margin: 1.25em 0px; border: 0px solid rgb(217, 217, 227); box-sizing: border-box; color: rgb(55, 65, 81);">Best regards,</p><p style="margin: 1.25em 0px; border: 0px solid rgb(217, 217, 227); box-sizing: border-box; color: rgb(55, 65, 81);"> Sawsan</p><br></span></div><div style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt;"></div></div></div></blockquote></div></div></div></div></div></blockquote></div></div></div><span id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_cid:66357E60-6F0B-4E28-9883-5421A4F75577"><Matrix_RHS.F90></span><span id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_cid:FB95EDCC-3170-4E85-BBFB-5804756A9022"><out.txt></span><span id="x_x_m_6313238004422759188x_m_5694742774502394814x_m_1291163558337743399x_m_6596943672973964543x_cid:8AF6D377-8CA5-4FFF-81AC-12EFB1837766"><solver.F90></span></div></blockquote></div><br></div></div></div></div></div></div></blockquote></div><br clear="all"><div><br></div><span>--<span class="Apple-converted-space"> </span></span><br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="https://urldefense.com/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!JmPEgBY0HMszNaDT!uskvAyF0pMMWDbMIexr9g4qN46V7Rea17GQdNIVG2vH_HMaX7mXgie4ZYgusmPpss_DS7H1_8vn8arGQNSkC$" originalsrc="https://urldefense.com/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!JmPEgBY0HMszNaDT!uskvAyF0pMMWDbMIexr9g4qN46V7Rea17GQdNIVG2vH_HMaX7mXgie4ZYgusmPpss_DS7H1_8vn8arGQNSkC$" shash="VGO9igiXq9J+bviDFWJOUVLsYQFFKhC1Alfb9jdMmC2HqnMvrePDWYz7H3sFjdiNAcfFwDBloP4Uutc3w2cyjcRjyjpza6wWjTsAS4F59aE3au/jXXdje8BFTjjsQgL6F/8dO/rISfyxkeVuhZ2uWiHRpDttXyOKulUc2punTlU=" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div></div></div></div></div></blockquote></div></div></div></div></div></blockquote></div></div></blockquote></div><br></div></div></div></div></blockquote></div></div></div></div><span id="cid:158B1236-A533-41BB-B5C9-0A5643C84A5F"><Newton_PETSc.txt></span></div></blockquote></div><br></div></body></html>