<div dir="ltr"><div dir="ltr">On Tue, Aug 23, 2022 at 9:48 AM Rafel Amer Ramon <<a href="mailto:rafel.amer@upc.edu">rafel.amer@upc.edu</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div><br>
Hi,<br>
<br>
yes, I can compile and run it:<br>
<br>
<pre>~$ mpicc -o pi-mpi pi-mpi.c -lm
~$ mpirun -np 16 --hostfile ~/hosts ./pi-mpi
Number of intervals: 2048
Result: 3.1411043724
Accuracy: 0.0004882812
Time: 0.0314383930
~$
</pre>
</div></div></blockquote><div>PETSc does not control the launch, so you must be using a different MPI. For building the PETSc executable, try instead</div><div>the minimum makefile</div><div><br></div><div>e: e.o</div><div> ${CLINKER} -o e e.o ${PETSC_LIB}</div><div><br></div><div>include ${PETSC_DIR}/lib/petsc/conf/variables</div><div>include ${PETSC_DIR}/lib/petsc/conf/rules</div><div class="gmail_quote"><br></div> Thanks,</div><div class="gmail_quote"><br></div><div class="gmail_quote"> Matt<br class="gmail-Apple-interchange-newline"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div>Best regards,<br>
<br>
Rafel Amer<br>
<br>
<br>
<br>
<br>
El 23/8/22 a les 14:46, Matthew Knepley ha escrit:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Can you run anything in parallel? Say the small
sample code that calculates pi?
<div><br>
</div>
<div> <a href="https://www.cs.usfca.edu/~mmalensek/cs220/schedule/code/week09/pi-mpi.c.html" target="_blank">https://www.cs.usfca.edu/~mmalensek/cs220/schedule/code/week09/pi-mpi.c.html</a></div>
<div><br>
</div>
<div> Thanks,</div>
<div><br>
</div>
<div> Matt</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Aug 23, 2022 at 6:34
AM Rafel Amer Ramon <<a href="mailto:rafel.amer@upc.edu" target="_blank">rafel.amer@upc.edu</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div><br>
Hi,<br>
<br>
mpicc and mpirun are from the package
openmpi-devel-4.1.2-3.fc36.x86_64<br>
and the petsc64 library is linked with <font color="#ffffff"> /usr/lib64/openmpi/lib/libmpi.so.40</font>
<pre>~# ldd /lib64/libpetsc64.so.3.16.4
linux-vdso.so.1 (0x00007fff5becc000)
libflexiblas64.so.3 => /lib64/libflexiblas64.so.3 (0x00007f3030e30000)
libcgns.so.4.2 => /usr/lib64/openmpi/lib/libcgns.so.4.2 (0x00007f3030d46000)
libhdf5.so.200 => /usr/lib64/openmpi/lib/libhdf5.so.200 (0x00007f303091a000)
libm.so.6 => /lib64/libm.so.6 (0x00007f303083c000)
libX11.so.6 => /lib64/libX11.so.6 (0x00007f30306f4000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f30304c0000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f303049e000)
libc.so.6 => /lib64/libc.so.6 (0x00007f303029c000)
libgfortran.so.5 => /lib64/libgfortran.so.5 (0x00007f302ffcf000)
libquadmath.so.0 => /lib64/libquadmath.so.0 (0x00007f302ff87000)
/lib64/ld-linux-x86-64.so.2 (0x00007f30327bb000)
<font color="#0000ff">libmpi.so.40 => /usr/lib64/openmpi/lib/libmpi.so.40 (0x00007f302fe59000)</font>
libsz.so.2 => /lib64/libsz.so.2 (0x00007f302fe50000)
libz.so.1 => /lib64/libz.so.1 (0x00007f302fe34000)
libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f302fe08000)
libopen-rte.so.40 => /usr/lib64/openmpi/lib/libopen-rte.so.40 (0x00007f302fd4d000)
libopen-pal.so.40 => /usr/lib64/openmpi/lib/libopen-pal.so.40 (0x00007f302fc9f000)
libhwloc.so.15 => /lib64/libhwloc.so.15 (0x00007f302fc42000)
libevent_core-2.1.so.7 => /lib64/libevent_core-2.1.so.7 (0x00007f302fc07000)
libevent_pthreads-2.1.so.7 => /lib64/libevent_pthreads-2.1.so.7 (0x00007f302fc02000)
libXau.so.6 => /lib64/libXau.so.6 (0x00007f302fbfc000)
</pre>
I think that it's correct, but it don't work.<br>
<br>
Best regards,<br>
<br>
Rafel Amer<br>
<br>
El 22/8/22 a les 20:36, Barry Smith ha escrit:<br>
</div>
<blockquote type="cite">
<div><br>
</div>
Are you sure the mpirun you are using matches the mpi
that PETSc was built with? <br>
<div><br>
<blockquote type="cite">
<div>On Aug 22, 2022, at 2:31 PM, Rafel Amer Ramon
<<a href="mailto:rafel.amer@upc.edu" target="_blank">rafel.amer@upc.edu</a>>
wrote:</div>
<br>
<div>
<div> Hi,<br>
<br>
I have installed the following packages on fedora
36<br>
<br>
<pre><font color="#0000ff">~# rpm -qa | grep petsc
petsc64-3.16.4-3.fc36.x86_64
petsc-3.16.4-3.fc36.x86_64
petsc-openmpi-3.16.4-3.fc36.x86_64
petsc-openmpi-devel-3.16.4-3.fc36.x86_64
python3-petsc-openmpi-3.16.4-3.fc36.x86_64
petsc-devel-3.16.4-3.fc36.x86_64
petsc64-devel-3.16.4-3.fc36.x86_64</font>
<font color="#0000ff">~# rpm -qa | grep openmpi
openmpi-4.1.2-3.fc36.x86_64
ptscotch-openmpi-6.1.2-2.fc36.x86_64
scalapack-openmpi-2.1.0-11.fc36.x86_64
openmpi-devel-4.1.2-3.fc36.x86_64
MUMPS-openmpi-5.4.1-2.fc36.x86_64
superlu_dist-openmpi-6.1.1-9.fc36.x86_64
hdf5-openmpi-1.12.1-5.fc36.x86_64
hypre-openmpi-2.18.2-6.fc36.x86_64
petsc-openmpi-3.16.4-3.fc36.x86_64
fftw-openmpi-libs-double-3.3.10-2.fc36.x86_64
fftw-openmpi-libs-long-3.3.10-2.fc36.x86_64
fftw-openmpi-libs-single-3.3.10-2.fc36.x86_64
fftw-openmpi-libs-3.3.10-2.fc36.x86_64
fftw-openmpi-devel-3.3.10-2.fc36.x86_64
petsc-openmpi-devel-3.16.4-3.fc36.x86_64
python3-petsc-openmpi-3.16.4-3.fc36.x86_64
scalapack-openmpi-devel-2.1.0-11.fc36.x86_64
python3-openmpi-4.1.2-3.fc36.x86_64
hdf5-openmpi-devel-1.12.1-5.fc36.x86_64
cgnslib-openmpi-4.2.0-6.fc36.x86_64
cgnslib-openmpi-devel-4.2.0-6.fc36.x86_64</font>
</pre>
and I try to compile and run the program written
in the file e.c<br>
<br>
<pre><font color="#0000ff">~# cat e.c
#include <petsc.h>
int main(int argc, char **argv) {
PetscErrorCode ierr;
PetscMPIInt rank;
ierr = PetscInitialize(&argc,&argv,NULL,
"Compute e in parallel with PETSc.\n\n"); if (ierr) return ierr;
ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank); CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"My rank is %d\n",rank); CHKERRQ(ierr);
return PetscFinalize();
}
</font>
</pre>
I compile it with the command<br>
<br>
<pre><font color="#0000ff">~# mpicc -o e e.c -I/usr/include/petsc64 -lpetsc64</font>
</pre>
and I run it with <br>
<br>
<pre><font color="#0000ff">~# mpirun -np 8 ./e</font>
<font color="#0000ff">My rank is 0
My rank is 0
My rank is 0
My rank is 0
My rank is 0
My rank is 0
My rank is 0
My rank is 0</font>
</pre>
but all my process get rank 0.<br>
<br>
Do you know what I'm doing wrong?<br>
<br>
Thank you!!<br>
<br>
Best regards,<br>
<br>
Rafel Amer </div>
</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
</div>
</blockquote>
</div>
<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>What most experimenters take for granted before
they begin their experiments is infinitely more
interesting than any results to which their
experiments lead.<br>
-- Norbert Wiener</div>
<div><br>
</div>
<div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<br>
</div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>