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<DIV dir=ltr align=left><SPAN class=865203722-29012007><FONT face=Arial
color=#0000ff size=2>Use whichever works best for you. </FONT></SPAN></DIV>
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<DIV dir=ltr align=left><SPAN class=865203722-29012007><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> owner-mpich-discuss@mcs.anl.gov
[mailto:owner-mpich-discuss@mcs.anl.gov] <B>On Behalf Of </B>Luiz
Mendes<BR><B>Sent:</B> Monday, January 29, 2007 7:54 AM<BR><B>To:</B>
mpich-discuss<BR><B>Subject:</B> [MPICH]
MPI_File_read_all<BR></FONT><BR></DIV>
<DIV></DIV>Hi all,<BR><BR>Is it an advantage use MPI_File_read_all instead of
MPI_File_read? Because in my tests here, the collective version have been
slower than non colective version, around 50%. <BR><BR>I think it is due to i
run programs in one computer only, with local processes only, is it right?
<BR><BR>Thanks in advance.<BR></BLOCKQUOTE></BODY></HTML>