Great! When i compile using<div><br></div><div>/usr/local/bin/mpicc main.c -o hello</div><div><br></div><div>i finally get an executable, and it runs just fine. Thanks!</div><div><br></div><div>S<br><br><div class="gmail_quote">
On Mon, Aug 16, 2010 at 7:32 PM, Rajeev Thakur <span dir="ltr"><<a href="mailto:thakur@mcs.anl.gov">thakur@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;">
Now what happens if you do /usr/local/bin/mpicc main.c?<br>
<div><div></div><div class="h5"><br>
<br>
On Aug 16, 2010, at 6:07 PM, sasha lambert wrote:<br>
<br>
> So if i give the full path to mpicc, this is what i get:<br>
><br>
> $ /usr/local/bin/mpicc -show<br>
> gcc -I/usr/local/include -L/usr/local/lib -L/usr/local/lib -lpmpich -lmpich -lopa -lpthread<br>
><br>
> Make sense?<br>
><br>
> On Sun, Aug 15, 2010 at 7:57 PM, Rajeev Thakur <<a href="mailto:thakur@mcs.anl.gov">thakur@mcs.anl.gov</a>> wrote:<br>
> That mpicc is from Open MPI, not MPICH2. Give the full path to mpicc.<br>
><br>
><br>
> On Aug 15, 2010, at 1:37 PM, sasha lambert wrote:<br>
><br>
> > That would be the following:<br>
> ><br>
> > $ mpicc -show<br>
> > gcc -D_REENTRANT -Wl,-u,_munmap -Wl,-multiply_defined,suppress -lmpi -lopen-rte -lopen-pal<br>
> ><br>
> > S<br>
> ><br>
> > On Sun, Aug 15, 2010 at 1:08 PM, <a href="mailto:michael.bane@manchester.ac.uk">michael.bane@manchester.ac.uk</a> <<a href="mailto:michael.bane@manchester.ac.uk">michael.bane@manchester.ac.uk</a>> wrote:<br>
> > What is output of mpicc -show<br>
> ><br>
> > ---<br>
> > Michael<br>
> ><br>
> ><br>
> > ----- Reply message -----<br>
> > From: "sasha lambert" <<a href="mailto:lambert.sasha@gmail.com">lambert.sasha@gmail.com</a>><br>
> > Date: Sun, Aug 15, 2010 17:32<br>
> > Subject: [mpich-discuss] libmpich.a "No such file or directory"<br>
> > To: <<a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a>><br>
> ><br>
> > Still nothing : ( There must be something basic i'm missing, or syntax error somewhere. Hmm.<br>
> ><br>
> > Thanks for the help!<br>
> ><br>
> > Sasha<br>
> ><br>
> > On Sun, Aug 15, 2010 at 11:59 AM, Si Hammond <<a href="mailto:simon.hammond@gmail.com">simon.hammond@gmail.com</a>> wrote:<br>
> > Pretty odd.<br>
> ><br>
> > Have you tried specifying the exact path?<br>
> ><br>
> > mpicc -o /home/abcd/main.o main.c<br>
> > mpicc -o /home/abcd/hello /home/acbd/main.o<br>
> ><br>
> ><br>
> > S.<br>
> ><br>
> ><br>
> > On 15 Aug 2010, at 16:38, sasha lambert wrote:<br>
> ><br>
> >> Hmm still nothing; no errors but no main.o.<br>
> >> My mpich configure, make, and make install steps went smoothly. The "which mpicc" test was successful, indicating its location at usr/bin.<br>
> >><br>
> >> Sasha<br>
> >><br>
> >> On Sun, Aug 15, 2010 at 11:25 AM, Si Hammond <<a href="mailto:simon.hammond@gmail.com">simon.hammond@gmail.com</a>> wrote:<br>
> >> Can you try...<br>
> >><br>
> >> mpicc -o main.o -c main.c<br>
> >> mpicc -o hello main.o<br>
> >><br>
> >> You should see the main.o in the directory, if no errors on the screen then it sounds like its working fine.<br>
> >><br>
> >><br>
> >> S.<br>
> >><br>
> >> On 15 Aug 2010, at 16:21, sasha lambert wrote:<br>
> >><br>
> >>> I tried compiling using mpicc, and nothing seems to happen.<br>
> >>> The prompt just reappears and no executable file has been made.<br>
> >>><br>
> >>> Sasha<br>
> >>><br>
> >>> On Sun, Aug 15, 2010 at 11:12 AM, Si Hammond <<a href="mailto:simon.hammond@gmail.com">simon.hammond@gmail.com</a>> wrote:<br>
> >>> Have you tried compiling with mpicc?<br>
> >>><br>
> >>> mpicc -o hello main.c<br>
> >>><br>
> >>> This sets up the linking etc for you.<br>
> >>><br>
> >>><br>
> >>><br>
> >>> S.<br>
> >>><br>
> >>><br>
> >>> On 15 Aug 2010, at 16:02, sasha lambert wrote:<br>
> >>><br>
> >>>> I'm fairly new to unix and mpich, so please bear with me.<br>
> >>>><br>
> >>>> I've tried to compile a simple "hello" program below:<br>
> >>>><br>
> >>>> /*The Parallel Hello World Program*/<br>
> >>>> #include <stdio.h><br>
> >>>> #include <mpi.h><br>
> >>>><br>
> >>>> main(int argc, char **argv)<br>
> >>>> {<br>
> >>>> int node;<br>
> >>>> MPI_Init(&argc,&argv);<br>
> >>>> MPI_Comm_rank(MPI_COMM_WORLD, &node);<br>
> >>>><br>
> >>>> printf("Hello World from Node %d\n",node);<br>
> >>>><br>
> >>>> MPI_Finalize();<br>
> >>>> }<br>
> >>>><br>
> >>>> Here is the shell response:<br>
> >>>><br>
> >>>> $ gcc main.c -o hello<br>
> >>>> Undefined symbols:<br>
> >>>> "_MPI_Comm_rank", referenced from:<br>
> >>>> _main in ccWLoMyo.o<br>
> >>>> "_MPI_Finalize", referenced from:<br>
> >>>> _main in ccWLoMyo.o<br>
> >>>> "_MPI_Init", referenced from:<br>
> >>>> _main in ccWLoMyo.o<br>
> >>>> ld: symbol(s) not found<br>
> >>>> collect2: ld returned 1 exit status<br>
> >>>><br>
> >>>> I tried searching for "MPI_init" in libmpich.a, thinking it might have to do with the added underscore in " _MPI_Init".<br>
> >>>> Shell response:<br>
> >>>><br>
> >>>> $ nm libmpich.a | grep mpi_init<br>
> >>>> nm: can't open file: libmpich.a (No such file or directory)<br>
> >>>><br>
> >>>> I've added usr/local/lib to the PATH, but still nothing. Any suggestions?<br>
> >>>><br>
> >>>> Thanks,<br>
> >>>> Sasha<br>
> >>>> _______________________________________________<br>
> >>>> mpich-discuss mailing list<br>
> >>>> <a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a><br>
> >>>> <a href="https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss" target="_blank">https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss</a><br>
> >>><br>
> >>><br>
> >>> ---------------------------------------------------------------------------------------<br>
> >>> Si Hammond<br>
> >>><br>
> >>> Research Fellow & Knowledge Transfer Associate<br>
> >>> Performance Computing & Visualisation Group<br>
> >>> Department of Computer Science<br>
> >>> University of Warwick, CV4 7AL, UK<br>
> >>> <a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a><br>
> >>> ----------------------------------------------------------------------------------------<br>
> >>><br>
> >>><br>
> >>><br>
> >>><br>
> >>><br>
> >>> _______________________________________________<br>
> >>> mpich-discuss mailing list<br>
> >>> <a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a><br>
> >>> <a href="https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss" target="_blank">https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss</a><br>
> >>><br>
> >>><br>
> >>> _______________________________________________<br>
> >>> mpich-discuss mailing list<br>
> >>> <a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a><br>
> >>> <a href="https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss" target="_blank">https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss</a><br>
> >><br>
> >><br>
> >> ---------------------------------------------------------------------------------------<br>
> >> Si Hammond<br>
> >><br>
> >> Research Fellow & Knowledge Transfer Associate<br>
> >> Performance Computing & Visualisation Group<br>
> >> Department of Computer Science<br>
> >> University of Warwick, CV4 7AL, UK<br>
> >> <a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a><br>
> >> ----------------------------------------------------------------------------------------<br>
> >><br>
> >><br>
> >><br>
> >><br>
> >><br>
> >> _______________________________________________<br>
> >> mpich-discuss mailing list<br>
> >> <a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a><br>
> >> <a href="https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss" target="_blank">https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss</a><br>
> >><br>
> >><br>
> >> _______________________________________________<br>
> >> mpich-discuss mailing list<br>
> >> <a href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</a><br>
> >> <a href="https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss" target="_blank">https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss</a><br>
> ><br>
> ><br>
> > ---------------------------------------------------------------------------------------<br>
> > Si Hammond<br>
> ><br>
> > Research Fellow & Knowledge Transfer Associate<br>
> > Performance Computing & Visualisation Group<br>
> > Department of Computer Science<br>
> > University of Warwick, CV4 7AL, UK<br>
> > <a href="http://go.warwick.ac.uk/hpsg" target="_blank">http://go.warwick.ac.uk/hpsg</a><br>
> > ----------------------------------------------------------------------------------------<br>
<br>
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</div></div></blockquote></div><br></div>