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</o:shapelayout></xml><![endif]--></head><body lang=EN-MY link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Also, I asked this specifically because my largest job using 8192 tasks was killed at the first IO-time due to being out of memory although I was using the .f000 format (either when every processor was outputting or 64 of them) . Any ideas as to why that might have happened? <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Hesam<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nek5000-users-bounces@lists.mcs.anl.gov [mailto:nek5000-users-bounces@lists.mcs.anl.gov] <b>On Behalf Of </b>nek5000-users@lists.mcs.anl.gov<br><b>Sent:</b> Saturday, October 19, 2013 12:18 PM<br><b>To:</b> nek5000-users@lists.mcs.anl.gov<br><b>Subject:</b> [Nek5000-users] MPI-IO in Nek<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hi Neks<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>After reading the following post, the inherent differences b/w .fld and .f000 files became somehow clear to me. However, I have a few questions: <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><a href="https://lists.mcs.anl.gov/mailman/htdig/nek5000-users/2013-June/002147.html">https://lists.mcs.anl.gov/mailman/htdig/nek5000-users/2013-June/002147.html</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span lang=EN-US>Is this correct that compiling with MPI-IO only requires adding this flag in makenek: </span>PPLIST="MPIIO" ? or is there anything else I need to do?<span lang=EN-US><o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span>I noticed that if you do not add the above flag but set param(66) and param(67) in usrdat2 to 6 or -6 , it does generate .f000 files. I assume it implicitly used MPIIO, right?<span lang=EN-US><o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>3)<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span>If I use several directories for outputting multiple files (by say setting p65=-64 in the .rea file), how can I restart from those multiple files associated with a single checkpoint in the *<b>.rea</b>* file? <span lang=EN-US><o:p></o:p></span></p><p class=MsoListParagraph><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks a lot for your help<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Hesam<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph><span lang=EN-US><o:p> </o:p></span></p></div></body></html>