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<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>Configuration:-
RHEL4U3,ia32,rc3,PCI-X</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>I have been seeing
the following error when I try to run MVAPICH test programs</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2>----</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>[0] Abort: Couldn't
modify SRQ limit<BR> at line 999 in file
viainit.c<BR>-----</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>On
debugging the issue it seems that MVAPICH is being incorrectly
compiled for the PCI_EX cards rather than PCI_X cards. From the MPI
code it seems that PCI-X cards do not support modifications of SRQs. The
source of the problem lies in a bug in the mvapich.make script(new IBED
addition) which incorrectly always returns the card as PCI_EX . I have
appended a diff with the fix. I am not sure as to how the patch can
be correctly generated as the whole MVAPICH is in the form of a
zipped tarball.</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>There seems to be
one more issue in the script where it deviates from the MVAPICH build. The
script is treating the older PCI_EX cards(cards with the lspci signature of
15b3:6278) as PCI-X. Was this done because these cards also don't support
resizing SRQs? </FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2>-Amit</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2>-------------------</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial size=2>diff -u
mvapich.make.old mvapich.make<BR>--- mvapich.make.old
2006-05-02 15:32:11.000000000 +0530<BR>+++
mvapich.make 2006-05-02
15:33:37.000000000 +0530<BR>@@ -251,13 +251,13
@@<BR>
DEF_BUILDID="$DEF_BUILDID"<BR>
fi<BR> fi<BR>-if (/sbin/lspci -n | grep "15b3:6282" | wc -l | tr -d
'[:space:]'); then<BR>+if (test `/sbin/lspci -n | grep "15b3:6282" | wc -l | tr
-d '[:space:]'` -gt 0); then<BR> #
Arbel<BR> CFLAGS="$CFLAGS
-D_PCI_EX_"<BR>-elif (/sbin/lspci -n | grep -E "15b3:5e8c|15b3:6274" | wc -l |
tr -d '[:space:]'); then<BR>+elif (test `/sbin/lspci -n | grep -E
"15b3:5e8c|15b3:6274" | wc -l | tr -d '[:space:]'` -gt 0);
then<BR> #
Sinai<BR> CFLAGS="$CFLAGS
-D_PCI_EX_"<BR>-elif (/sbin/lspci -n | grep -E "15b3:5a44|15b3:6278" | wc -l |
tr -d '[:space:]'); then<BR>+elif (test `/sbin/lspci -n | grep -E
"15b3:5a44|15b3:6278" | wc -l | tr -d '[:space:]'` -gt 0);
then<BR> #
Tavor<BR> CFLAGS="$CFLAGS
-D_PCI_X_"<BR> fi<BR></FONT></SPAN><SPAN class=133162410-02052006><FONT
face=Arial size=2>-----------</FONT></SPAN></DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=133162410-02052006><FONT face=Arial
size=2> </DIV></FONT></SPAN></BODY></HTML>