What is output of mpicc -show<br><br>---<br>Michael<br><br><br><div id="htc_header" style="">----- Reply message -----<br>From: "sasha lambert" <lambert.sasha@gmail.com><br>Date: Sun, Aug 15, 2010 17:32<br>Subject: [mpich-discuss] libmpich.a "No such file or directory"<br>To: <mpich-discuss@mcs.anl.gov><br><br></div>Still nothing : ( There must be something basic i'm missing, or syntax error somewhere. Hmm.<div><br></div><div>Thanks for the help!</div><div><br></div><div>Sasha<br><br><div class="gmail_quote">On Sun, Aug 15, 2010 at 11:59 AM, Si Hammond <span dir="ltr"><<a href="mailto:simon.hammond@gmail.com">simon.hammond@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word"><div>Pretty odd.</div><div><br></div><div>Have you tried specifying the exact path?</div>
<div><br></div><div>mpicc -o /home/abcd/main.o main.c</div><div>mpicc -o /home/abcd/hello /home/acbd/main.o</div><div><br></div><font color="#888888"><div><br></div><div>S.</div></font><div><div></div><div class="h5"><div>
<br></div><br><div><div>On 15 Aug 2010, at 16:38, sasha lambert wrote:</div><br><blockquote type="cite">Hmm still nothing; no errors but no main.o.<div>My mpich configure, make, and make install steps went smoothly. The "which mpicc" test was successful, indicating its location at usr/bin.</div>
<div><br></div><div>
Sasha<br><br><div class="gmail_quote">On Sun, Aug 15, 2010 at 11:25 AM, Si Hammond <span dir="ltr"><<a href="mailto:simon.hammond@gmail.com" target="_blank">simon.hammond@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Can you try...<div><br></div><div>mpicc -o main.o -c main.c</div><div>mpicc -o hello main.o</div><div><br></div><div>You should see the main.o in the directory, if no errors on the screen then it sounds like its working fine.</div>
<div><br></div><font color="#888888"><div><br></div><div>S.</div></font><div><div></div><div><div><br><div><div>On 15 Aug 2010, at 16:21, sasha lambert wrote:</div><br><blockquote type="cite">I tried compiling using mpicc, and nothing seems to happen.<div>
The prompt just reappears and no executable file has been made.</div><div><br></div><div>Sasha<br><div><br><div class="gmail_quote">On Sun, Aug 15, 2010 at 11:12 AM, Si Hammond <span dir="ltr"><<a href="mailto:simon.hammond@gmail.com" target="_blank">simon.hammond@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Have you tried compiling with mpicc?<div><br></div><div>mpicc -o hello main.c </div>
<div><br></div><div>This sets up the linking etc for you.</div><div><br></div><div><br></div><div><br></div><div>S.</div><div><br></div><div><br><div><div><div></div><div><div>On 15 Aug 2010, at 16:02, sasha lambert wrote:</div>
<br></div></div><blockquote type="cite"><div><div></div><div>I'm fairly new to unix and mpich, so please bear with me.<div><br></div><div>I've tried to compile a simple "hello" program below:</div>
<div><br></div><div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(0, 139, 0)">
/*The Parallel Hello World Program*/</div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(126, 70, 35)">#include <span style="color:#e00000"><stdio.h></span></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(126, 70, 35)">
#include <span style="color:#e00000"><mpi.h></span></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;min-height:13px"><br></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px">
main(<span style="color:#c800a3">int</span> argc, <span style="color:#c800a3">char</span> **argv)</div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px">{</div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px">
<span style="white-space:pre-wrap"> </span><span style="color:#c800a3">int</span> node;</div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px"><span style="white-space:pre-wrap"> </span><span style="color:#430084">MPI_Init</span>(&argc,&argv);</div>
<div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(126, 70, 35)"><span style="color:#000000"><span style="white-space:pre-wrap"> </span></span><span style="color:#430084">MPI_Comm_rank</span><span style="color:#000000">(</span>MPI_COMM_WORLD<span style="color:#000000">, &node);</span></div>
<div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;min-height:13px"><span style="white-space:pre-wrap"> </span><br></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(224, 0, 0)">
<span style="color:#000000"><span style="white-space:pre-wrap"> </span></span><span style="color:#430084">printf</span><span style="color:#000000">(</span>"Hello World from Node %d\n"<span style="color:#000000">,node);</span></div>
<div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;min-height:13px"><span style="white-space:pre-wrap"> </span><br></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(67, 0, 132)">
<span style="color:#000000"><span style="white-space:pre-wrap"> </span></span>MPI_Finalize<span style="color:#000000">();</span></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px">}</div>
</div>
<div><br></div><div>Here is the shell response:</div><div><br></div><div><div>$ gcc main.c -o hello</div><div>Undefined symbols:</div><div> "_MPI_Comm_rank", referenced from:</div>
<div> _main in ccWLoMyo.o</div><div> "_MPI_Finalize", referenced from:</div><div> _main in ccWLoMyo.o</div><div> "_MPI_Init", referenced from:</div><div> _main in ccWLoMyo.o</div><div>
ld: symbol(s) not found</div><div>collect2: ld returned 1 exit status</div></div><div><br></div><div>I tried searching for "MPI_init" in libmpich.a, thinking it might have to do with the added underscore in " _MPI_Init".</div>
<div>Shell response:</div><div><br></div><div><div>$ nm libmpich.a | grep mpi_init</div><div>nm: can't open file: libmpich.a (No such file or directory)</div></div><div><br></div><div>I've added usr/local/lib to the PATH, but still nothing. Any suggestions?</div>
<div><br></div><div>Thanks,</div><div>Sasha</div></div></div>
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<br>---------------------------------------------------------------------------------------</div><div>Si Hammond</div><div><br></div><div>Research Fellow & Knowledge Transfer Associate</div><div>Performance Computing & Visualisation Group</div>
<div>Department of Computer Science</div><div>University of Warwick, CV4 7AL, UK</div><div><a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a></div><div>----------------------------------------------------------------------------------------</div>
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<br>---------------------------------------------------------------------------------------</div><div>Si Hammond</div><div><br></div><div>Research Fellow & Knowledge Transfer Associate</div><div>Performance Computing & Visualisation Group</div>
<div>Department of Computer Science</div><div>University of Warwick, CV4 7AL, UK</div><div><a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a></div><div>----------------------------------------------------------------------------------------</div>
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<br>---------------------------------------------------------------------------------------</div><div>Si Hammond</div><div><br></div><div>Research Fellow & Knowledge Transfer Associate</div><div>Performance Computing & Visualisation Group</div>
<div>Department of Computer Science</div><div>University of Warwick, CV4 7AL, UK</div><div><a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a></div><div>----------------------------------------------------------------------------------------</div>
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