[mvapich-discuss] (no subject)

Fri Mar 7 11:03:45 EST 2008

Hi Nilesh,

With FAST_RDMA_PATH, send/recv still needs to be used when RDMA buffers are used up. It is also used for internal flow control messages. We have observed that the combined design of using both rdma and send/recv gives the best performance and there is no environment variable to disable send/recv.

Lei

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=0AHi all,=0A=0AI'm using mvapich2-1.0.1 with OFED1.2.5.3(udapl stack),=0A=
=0AWhile running Pallas;  I've observed there is call for post send-recv (u=
sing debug statement)=0A=0Aeven though  there is FAST_RDMA_PATH flag is set=
 in make file . . .=0A=0A( It colling send-recv path conditionally ; can't =
we avoid those condition ? )=0A=0Acan't we avoid call to post send-recv thr=
ough out ? .  . . (by setting environment variable . . .)=0A=0Athanking,=0A=
=0ANilesh=0A=0A=0A=0A      5, 50, 500, 5000 - Store N number of mails in yo=
ur inbox. Go to http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools=
-08.html
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<html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></he=
ad><body><div style=3D"font-family:times new roman, new york, times, serif;=
font-size:12pt"><br>Hi all,<br><br>I'm using mvapich2-1.0.1 with OFED1.2.5.=
3(udapl stack),<br><br>While running Pallas;&nbsp; I've observed there is c=
all for post send-recv (using debug statement)<br><br>even though&nbsp; the=
re is FAST_RDMA_PATH flag is set in make file . . .<br><br>( It colling sen=
d-recv path conditionally ; can't we avoid those condition ? )<br><br>can't=
 we avoid call to post send-recv through out ? .&nbsp; . . (by setting envi=
ronment variable . . .)<br><br>thanking,<br><br>Nilesh<br></div><br>=0A=0A=
=0A=0A      <!--1--><hr size=3D1></hr> Why delete messages? Unlimited stora=
ge is <a href=3D"http://in.rd.yahoo.com/tagline_mail_1/*http://help.yahoo.c=
om/l/in/yahoo/mail/yahoomail/tools/tools-08.html/">just a click away.</a></=
body></html>
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