<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span>Thanks a lot for both of you!</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>Qin</span></div><div><br></div> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font size="2"
face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Xiaoye S. Li <xsli@lbl.gov><br> <b><span style="font-weight: bold;">To:</span></b> Barry Smith <bsmith@mcs.anl.gov> <br><b><span style="font-weight: bold;">Cc:</span></b> Qin Lu <lu_qin_2000@yahoo.com>; "petsc-users@mcs.anl.gov" <petsc-users@mcs.anl.gov> <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, May 2, 2014 3:40 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [petsc-users] ILUTP in PETSc<br> </font> </div> <div class="y_msg_container"><br><div id="yiv8685434963"><div><div dir="ltr"><div class="yiv8685434963gmail_default" style="font-family: arial, helvetica, sans-serif;"><div style="font-family: arial, sans-serif; font-size: 18px;">The sequential SuperLU has ILUTP implementation, not in parallel versions. PETSc already supports the option of using SuperLU, so you should be able to try easily. <br clear="none">
<br clear="none">In SuperLU distribution:<br clear="none"></div><div style="font-family: arial, sans-serif; font-size: 18px;"> EXAMPLE/zitersol.c : an example to use GMRES with ILUTP preconditioner (returned from driver SRC/zgsisx.c)<br clear="none"></div><div style="font-family: arial, sans-serif; font-size: 18px;">
SRC/zgsitrf.c : the actual ILUTP factorization routine<br clear="none"><br clear="none"></div><div style="font-family: arial, sans-serif; font-size: 18px;">Sherry Li</div></div></div><div class="yiv8685434963yqt3842920347" id="yiv8685434963yqt19081"><div class="yiv8685434963gmail_extra"><br clear="none"><br clear="none"><div class="yiv8685434963gmail_quote">On Fri, May 2, 2014 at 12:25 PM, Barry Smith <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:bsmith@mcs.anl.gov" target="_blank" href="mailto:bsmith@mcs.anl.gov">bsmith@mcs.anl.gov</a>></span> wrote:<br clear="none">
<blockquote class="yiv8685434963gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br clear="none">
At <a rel="nofollow" shape="rect" target="_blank" href="http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html">http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html</a> there are two listed. ./configure —download-hypre<br clear="none">
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mpiexec -n 23 ./yourprogram -pc_type hypre -pc_hypre_type ilupt or euclid<br clear="none">
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you can also add -help to see what options are available.<br clear="none">
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Both pretty much suck and I can’t image much reason for using them.<br clear="none">
<span class="yiv8685434963HOEnZb"><font color="#888888"><br clear="none">
Barry<br clear="none">
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On May 2, 2014, at 10:27 AM, Qin Lu <<a rel="nofollow" shape="rect" ymailto="mailto:lu_qin_2000@yahoo.com" target="_blank" href="mailto:lu_qin_2000@yahoo.com">lu_qin_2000@yahoo.com</a>> wrote:<br clear="none">
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> Hello,<br clear="none">
><br clear="none">
> I am interested in using ILUTP preconditioner with PETSc linear solver. There is an online doc <a rel="nofollow" shape="rect" target="_blank" href="https://fs.hlrs.de/projects/par/par_prog_ws/pdf/petsc_nersc01_short.pdf">https://fs.hlrs.de/projects/par/par_prog_ws/pdf/petsc_nersc01_short.pdf</a> that mentioned it is available in PETSc with other packages (page 62-63). Is there any instructions or examples on how to use it?<br clear="none">
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> Many thanks,<br clear="none">
> Qin<br clear="none">
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