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Please check your code. You issued an MPI_Recv with count=0 (i.e.,
telling MPI that the receive buffer is 0 bytes long).<br>
<br>
Antonio<br>
<br>
<br>
On 11/30/2013 09:32 AM, Soheil Hooshdaran wrote:<br>
</div>
<blockquote
cite="mid:CAKtsx+_++YAoK8H2PJs43YF8nBebPvVwxH1C9OsVaG30141oUg@mail.gmail.com"
type="cite">
<div dir="ltr">So what do I have to do now, sir? Especially
regarding my Bcast()s a,d Recv()s</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Sat, Nov 30, 2013 at 1:05 AM, Pavan
Balaji <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:balaji@mcs.anl.gov" target="_blank">balaji@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 class="im"><br>
Please keep <a moz-do-not-send="true"
href="mailto:discuss@mpich.org">discuss@mpich.org</a>
cc’ed.<br>
<br>
</div>
<div class="im">On Nov 29, 2013, at 2:19 PM, Soheil
Hooshdaran <<a moz-do-not-send="true"
href="mailto:shooshdaran577@gmail.com">shooshdaran577@gmail.com</a>>
wrote:<br>
> executing send for the 3th time<br>
> executed send for the 3th time, sending 40 bytes<br>
> Fatal error in MPI_Recv: Message truncated, error
stack:<br>
> MPI_Recv(184).....................:
MPI_Recv(buf=0xbff95c98, count=0, MPI_INT, src=0, tag=1,
MPI_COMM_WORLD, status=0xbff95c70) failed<br>
> MPIDI_CH3U_Receive_data_found(131): Message from rank
0 and tag 1 truncated; 160 bytes received but buffer size
is 0<br>
<br>
</div>
I don’t think I can explain the error any better than what
the message above already says.<br>
<div class="HOEnZb">
<div class="h5"><br>
--<br>
Pavan Balaji<br>
<a moz-do-not-send="true"
href="http://www.mcs.anl.gov/%7Ebalaji"
target="_blank">http://www.mcs.anl.gov/~balaji</a></div>
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<br>
<pre class="moz-signature" cols="72">--
Antonio J. Peña
Postdoctoral Appointee
Mathematics and Computer Science Division
Argonne National Laboratory
9700 South Cass Avenue, Bldg. 240, Of. 3148
Argonne, IL 60439-4847
<a class="moz-txt-link-abbreviated" href="mailto:apenya@mcs.anl.gov">apenya@mcs.anl.gov</a>
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