<div dir="ltr">You might write a test of fork() and see if there's a Windows-related problem with that. My guess is that this has nothing to do with MPICH and everything to do with the OS. In any case, there's no point in discussing it further on the list unless you want to install Linux in a VM or something.<div>
<br></div><div>Jeff</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Aug 19, 2013 at 1:52 PM, Wesley Bland <span dir="ltr"><<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><div>Unfortunately, we haven't supported Windows since MPICH version 1.4.1p1. You can find out more at the FAQ page: <a href="http://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_Why_can.27t_I_build_MPICH_on_Windows_anymore.3F" target="_blank">http://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_Why_can.27t_I_build_MPICH_on_Windows_anymore.3F</a></div>
<div><br></div><div>Since we don't have any test environments or Windows experts, we can't really shed any light onto why you would get this performance. You might try MS-MPI as mentioned in the FAQ post.</div><div>
<br></div><div>Thanks,</div><div>Wesley</div></div><div><br><div><div>On Aug 19, 2013, at 12:44 PM, Abhishek Kumar Pandey <<a href="mailto:akpandey@adobe.com" target="_blank">akpandey@adobe.com</a>> wrote:</div><br>
<blockquote type="cite"><div lang="EN-IN" link="blue" vlink="purple" style="font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
<div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="color:rgb(34,34,34);font-size:10pt;font-family:Arial,sans-serif;background-repeat:initial initial">Hi,</span><span lang="EN-US" style="font-size:12pt;font-family:'Times New Roman',serif"><u></u><u></u></span></div>
<div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)"> </span></div><div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt">
<span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">I am using mpich-1.4.1.p1 to launch multiple child processes. On Window Server 2008 all the child processes are launched almost immediately but this takes significant time on Window Server 2012. <u></u><u></u></span></div>
<div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)"> </span></div><div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt">
<span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">I am using MPI_Comm_spawn for spawning a process and MPI::Init_thread(argc,argv,MPI_THREAD_MULTIPLE) is used for initializing MPICH2.<u></u><u></u></span></div>
<div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)"> </span></div><div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt">
<span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">Please let me know if this is a known problem. Is there any workaround ? <u></u><u></u></span></div><div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt">
<span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)"> </span></div><div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">Regards,<u></u><u></u></span></div>
<div style="font-size:11pt;font-family:Calibri,sans-serif;margin:0cm 0cm 0.0001pt"><span lang="EN-US" style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">Abhishek <u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">
<span lang="EN-US"> </span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div>_______________________________________________<br>discuss mailing list <a href="mailto:discuss@mpich.org" style="color:purple;text-decoration:underline" target="_blank">discuss@mpich.org</a><br>
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