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<DIV dir=ltr align=left><SPAN class=078170221-16032009><FONT face=Arial
color=#0000ff size=2>What maximum message predefined message size in MPICH2 are
you refering to?</FONT></SPAN></DIV>
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color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=078170221-16032009><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> mpich-discuss-bounces@mcs.anl.gov
[mailto:mpich-discuss-bounces@mcs.anl.gov] <B>On Behalf Of </B>Arsenault,
Benoit<BR><B>Sent:</B> Monday, March 16, 2009 3:21 PM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [mpich-discuss] Large Message
Sizes with Mpich2 V 1.0.8<BR></FONT><BR></DIV>
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<P><B><FONT face=Arial size=2>UNRESTRICTED | ILLIMITÉ</FONT></B> </P>
<P><FONT face=Arial size=2>Mpich2 Users,</FONT> </P>
<P><FONT face=Arial size=2>I compiled the 64-bit mpich2 Version 1.0.8 with
MCNP5 Version 1.40 on Linux RedHat. I can run reasonable size problems
without any difficulties, but the code crashes when I use large models.
The error message that I get is listed below and relates to a subroutine in
MCNP5.</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2069154944)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2049205848)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2029256752)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2029256704)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2028987040)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2028987032)</FONT></P>
<P><FONT face=Arial size=2> [pe:0] **DOTCOMM Error** DOTCOMMI_PACK
(dotcommi_pack.c:104[!(( dotcommp_sbuf.data != ((void *)0) ))])
(alloc(dotcommp_sbuf.data)) (2028592456).</FONT></P>
<P><FONT face=Arial size=2>I browsed the MCNP Users' group and similar
problems have been encountered where users had to re-compile mpich2 with a
change to increase the maximum size of a message. I couldn't find a way
to go beyond the maximum size of a message pre-defined in mpich2 V
1.0.8.</FONT></P>
<P><FONT face=Arial size=2>Would anyone knows if mpich2 V 1.0.8 has the same
limitations in terms of maximum message size, and if this can be
resolved?</FONT></P><BR>
<P><FONT face=Arial size=2>Thanks for your help.</FONT> </P><BR>
<P><FONT face=Arial size=2>Ben</FONT> </P><BR><BR><BR>
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