<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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