<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Apologies, forgot to mention in my previous email but can you also include a copy of the full printout of the error message that you get? It will include all the command-line flags that you ran with (if any) so I can exactly mirror your environment.<div class=""><div class=""><br class=""><div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); 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; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); 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; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>Best regards,<br class=""><br class="">Jacob Faibussowitsch<br class="">(Jacob Fai - booss - oh - vitch)<br class=""></div></div></div>
</div>
<div><br class=""><blockquote type="cite" class=""><div class="">On Jan 18, 2022, at 14:06, Jacob Faibussowitsch <<a href="mailto:jacob.fai@gmail.com" class="">jacob.fai@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><div dir="ltr" style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; 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;" class="">Can you send your updated source file as well as your configure.log (should be $PETSC_DIR/configure.log). I will see if I can reproduce the error on my end.<br class=""><br class=""><div dir="ltr" class=""><span style="background-color: rgba(255, 255, 255, 0);" class="">Best regards,<br class=""><br class="">Jacob Faibussowitsch<br class="">(Jacob Fai - booss - oh - vitch)</span></div><div dir="ltr" class=""><br class=""><blockquote type="cite" class="">On Jan 17, 2022, at 23:06, Hao DONG <<a href="mailto:dong-hao@outlook.com" class="">dong-hao@outlook.com</a>> wrote:<br class=""><br class=""></blockquote></div><blockquote type="cite" class=""><div dir="ltr" class=""><div class="WordSection1" style="page: WordSection1;"><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Dear Junchao and Jacob,<span class="Apple-converted-space"> </span></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks a lot for the response – I also don’t understand why this is related to the device, especially on why the procedure can be successfully finished for *<b class="">once</b>* – As instructed, I tried to add a CHKERRA() macro after (almost) every petsc line – such as the initialization, mat assemble, ksp create, solve, mat destroy, etc. However, all other petsc commands returns with error code 0. It only gives me a similar (still not very informative) error after I call the petscfinalize (again for the second time), with error code 97: <span class="Apple-converted-space"> </span></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: GPU error</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: cuda error 709 (cudaErrorContextIsDestroyed) : context is destroyed</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: See <a href="https://petsc.org/release/faq/" class="">https://petsc.org/release/faq/</a> for trouble shooting.</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Petsc Release Version 3.16.3, unknown</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: ./ex11f on a named stratosphere by donghao Tue Jan 18 11:39:43 2022</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Configure options --prefix=/opt/petsc/complex-double-with-cuda --with-cc=mpicc --with-cxx=mpicxx --with-fc=mpif90 COPTFLAGS="-O3 -mavx2" CXXOPTFLAGS="-O3 -mavx2" FOPTFLAGS="-O3 -ffree-line-length-none -mavx2" CUDAOPTFLAGS=-O3 --with-cxx-dialect=cxx14 --with-cuda-dialect=cxx14 --with-scalar-type=complex --with-precision=double --with-cuda-dir=/usr/local/cuda --with-debugging=1</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #1 PetscFinalize() at /home/donghao/packages/petsc-current/src/sys/objects/pinit.c:1638</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #2 User provided function() at User file:0</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I can also confirm that rolling back to petsc 3.15 will *<b class="">not</b>* see the problem, even with the new nvidia driver. And petsc 3.16.3 with an old nvidia driver (470.42) also get this same error. So it’s probably not connected to the nvidia driver.<span class="Apple-converted-space"> </span><o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Any idea on where I should look at next?<span class="Apple-converted-space"> </span><o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks a lot in advance, and all the best,</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hao</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(225, 225, 225); padding: 3pt 0in 0in;" class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; border: none; padding: 0in;" class=""><b class="">From:<span class="Apple-converted-space"> </span></b><a href="mailto:jacob.fai@gmail.com" style="color: blue; text-decoration: underline;" class="">Jacob Faibussowitsch</a><br class=""><b class="">Sent:<span class="Apple-converted-space"> </span></b>Sunday, January 16, 2022 12:12 AM<br class=""><b class="">To:<span class="Apple-converted-space"> </span></b><a href="mailto:junchao.zhang@gmail.com" style="color: blue; text-decoration: underline;" class="">Junchao Zhang</a><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b><a href="mailto:petsc-users@mcs.anl.gov" style="color: blue; text-decoration: underline;" class="">petsc-users</a>;<span class="Apple-converted-space"> </span><a href="mailto:dong-hao@outlook.com" style="color: blue; text-decoration: underline;" class="">Hao DONG</a><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [petsc-users] Strange CUDA failure with a second petscfinalize with PETSc 3.16</div></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I don’t quite understand how it is getting to the CUDA error to be honest. None of the code in the stack trace is anywhere near the device code. Reading the error message carefully, it first chokes on PetscLogGetStageLog() from a call to PetscClassIdRegister():<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">PetscErrorCode PetscLogGetStageLog(PetscStageLog *stageLog)<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">{<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> PetscFunctionBegin;<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> PetscValidPointer(stageLog,1);<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> if (!petsc_stageLog) {<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> fprintf(stderr, "PETSC ERROR: Logging has not been enabled.\nYou might have forgotten to call PetscInitialize().\n");<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> PETSCABORT(MPI_COMM_WORLD, PETSC_ERR_SUP); // Here<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> }<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> ...<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">But then jumps to PetscFinalize(). You can also see the "You might have forgotten to call PetscInitialize().” message in the error message, just under the topmost level of the stack trace.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Can you check the value of ierr of each function call (use the CHKERRA() macro to do so)? I suspect the problem here that errors occurring previously in the program are being ignored, leading to the garbled stack trace.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div class=""><div class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="" class="">Best regards,<br class=""><br class="">Jacob Faibussowitsch<br class="">(Jacob Fai - booss - oh - vitch)<o:p class=""></o:p></span></div></div></div></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""><br class=""><o:p class=""></o:p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">On Jan 14, 2022, at 20:58, Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com" style="color: blue; text-decoration: underline;" class="">junchao.zhang@gmail.com</a>> wrote:<o:p class=""></o:p></div></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Jacob, <o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> Could you have a look as it seems the "invalid device context" is in your newly added module?<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> Thanks<o:p class=""></o:p></div></div><div class=""><div class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">--Junchao Zhang<o:p class=""></o:p></div></div></div></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">On Fri, Jan 14, 2022 at 12:49 AM Hao DONG <<a href="mailto:dong-hao@outlook.com" style="color: blue; text-decoration: underline;" class="">dong-hao@outlook.com</a>> wrote:<o:p class=""></o:p></div></div><blockquote style="border-style: none none none solid; border-left-width: 1pt; border-left-color: rgb(204, 204, 204); padding: 0in 0in 0in 6pt; margin: 5pt 0in 5pt 4.8pt;" class=""><div class=""><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Dear All, </div><div class=""><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I have encountered a peculiar problem when fiddling with a code with PETSC 3.16.3 (which worked fine with PETSc 3.15). It is a very straight forward PDE-based optimization code which repeatedly solves a linearized PDE problem with KSP in a subroutine (the rest of the code does not contain any PETSc related content). The main program provides the subroutine with an MPI comm. Then I set the comm as PETSC_COMM_WORLD to tell PETSC to attach to it (and detach with it when the solving is finished each time).</div></div><div class=""><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Strangely, I observe a CUDA failure whenever the petscfinalize is called for a *second* time. In other words, the first and second PDE calculations with GPU are fine (with correct solutions). The petsc code just fails after the SECOND petscfinalize command is called. You can also see the PETSC config in the error message:<span class="Apple-converted-space"> </span></div><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: GPU error</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: cuda error 201 (cudaErrorDeviceUninitialized) : invalid device context</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: See<span class="Apple-converted-space"> </span><a href="https://petsc.org/release/faq/" target="_blank" style="color: blue; text-decoration: underline;" class="">https://petsc.org/release/faq/</a><span class="Apple-converted-space"> </span>for trouble shooting.</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: Petsc Release Version 3.16.3, unknown</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: maxwell.gpu on a named stratosphere by hao Fri Jan 14 10:21:05 2022</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: Configure options --prefix=/opt/petsc/complex-double-with-cuda --with-cc=mpicc --with-cxx=mpicxx --with-fc=mpif90 COPTFLAGS="-O3 -mavx2" CXXOPTFLAGS="-O3 -mavx2" FOPTFLAGS="-O3 -ffree-line-length-none -mavx2" CUDAOPTFLAGS=-O3 --with-cxx-dialect=cxx14 --with-cuda-dialect=cxx14 --with-scalar-type=complex --with-precision=double --with-cuda-dir=/usr/local/cuda --with-debugging=1</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1]PETSC ERROR: #1 PetscFinalize() at /home/hao/packages/petsc-current/src/sys/objects/pinit.c:1638</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">You might have forgotten to call PetscInitialize().</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">The EXACT line numbers in the error traceback are not available.</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Instead the line number of the start of the function is given.</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #1 PetscAbortFindSourceFile_Private() at /home/hao/packages/petsc-current/src/sys/error/err.c:35</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #2 PetscLogGetStageLog() at /home/hao/packages/petsc-current/src/sys/logging/utils/stagelog.c:29</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #3 PetscClassIdRegister() at /home/hao/packages/petsc-current/src/sys/logging/plog.c:2376</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #4 MatMFFDInitializePackage() at /home/hao/packages/petsc-current/src/mat/impls/mffd/mffd.c:45</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #5 MatInitializePackage() at /home/hao/packages/petsc-current/src/mat/interface/dlregismat.c:163</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[1] #6 MatCreate() at /home/hao/packages/petsc-current/src/mat/utils/gcreate.c:77</div><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">However, it doesn’t seem to affect the other part of my code, so the code can continue running until it gets to the petsc part again (the *<b class="">third</b>* time). Unfortunately, it doesn’t give me any further information even if I set the debugging to yes in the configure file. It also worth noting that PETSC without CUDA (i.e. with simple MATMPIAIJ) works perfectly fine. </div></div><div class=""><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I am able to re-produce the problem with a toy code modified from ex11f. Please see the attached file (ex11fc.F90) for details. Essentially the code does the same thing as ex11f, but three times with a do loop. To do that I added an extra MPI_INIT/MPI_FINALIZE to ensure that the MPI communicator is not destroyed when PETSC_FINALIZE is called. I used the PetscOptionsHasName utility to check if you have “-usecuda” in the options. So running the code with and without that option can give you a comparison w/o CUDA. I can see that the code also fails after the second loop of the KSP operation. Could you kindly shed some lights on this problem?</div></div><div class=""><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p></div><div class=""><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I should say that I am not even sure if the problem is from PETSc, as I also accidentally updated the NVIDIA driver (for now it is 510.06 with cuda 11.6). And it is well known that NVIDIA can give you some surprise in the updates (yes, I know I shouldn’t have touched that if it’s not broken). But my CUDA code without PETSC (which basically does the same PDE thing, but with cusparse/cublas directly) seems to work just fine after the update. It is also possible that my petsc code related to CUDA was not quite “legitimate” – I just use:<span class="Apple-converted-space"> </span></div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> MatSetType(A, MATMPIAIJCUSPARSE, ierr)</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">and<span class="Apple-converted-space"> </span></div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> MatCreateVecs(A, u, PETSC_NULL_VEC, ierr)</div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">to make the data onto GPU. I would very much appreciate it if you could show me the “right” way to do that. </div><p class="MsoNormal" style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks a lot in advance, and all the best,</div></div><div style="margin: 0in 0in 0in 40.8pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hao</div></div></div></blockquote></div></div></blockquote></div></div></div></div></div></blockquote></div></div></blockquote></div><br class=""></div></div></body></html>