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<p>Hei,</p>
<p>the following code works fine:</p>
<p>#include <iostream><br>
#include <petsc.h><br>
<br>
static char help[] = "Solves 2D Poisson equation using
multigrid.\n\n";<br>
int main(int argc,char **argv) {<br>
PetscInitialize(&argc,&argv,(char*)0,help);<br>
std::cout << "Hello World\n";<br>
PetscFinalize();<br>
return 0;<br>
}</p>
<p>Regards,</p>
<p>Roland<br>
</p>
<div class="moz-cite-prefix">Am 11.10.21 um 14:34 schrieb Stefano
Zampini:<br>
</div>
<blockquote type="cite"
cite="mid:383F2AEB-4CEB-4407-A1B3-E294ACDFD91C@gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Can you try with a simple call that only calls
PetscInitialize/Finalize?
<div class=""><br class="">
<div class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 11, 2021, at 3:30 PM, Roland Richter
<<a href="mailto:roland.richter@ntnu.no"
class="moz-txt-link-freetext" moz-do-not-send="true">roland.richter@ntnu.no</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">
<p class="">At least according to configure.log
mpiexec was defined as</p>
<p class="">Checking for program
/opt/intel/oneapi/mpi/2021.4.0//bin/mpiexec...found<br
class="">
Defined make macro
"MPIEXECEXECUTABLE" to
"/opt/intel/oneapi/mpi/2021.4.0/bin/mpiexec"</p>
<p class="">When running ex19 with this mpiexec it
fails with the usual error, even though all
configuration steps worked fine. I attached the
configuration log.<br class="">
</p>
<p class="">Regards,</p>
<p class="">Roland<br class="">
</p>
<div class="moz-cite-prefix">Am 11.10.21 um 14:24
schrieb Stefano Zampini:<br class="">
</div>
<blockquote type="cite"
cite="mid:1280E270-AAA1-44CE-AE2A-93A2B70462E2@gmail.com"
class=""> You are most probably using a different
mpiexec then the one used to compile petsc.
<div class=""><br class="">
</div>
<div class=""><br class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 11, 2021, at 3:23 PM,
Roland Richter <<a
href="mailto:roland.richter@ntnu.no"
class="moz-txt-link-freetext"
moz-do-not-send="true">roland.richter@ntnu.no</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">
<p class="">I tried either <i class="">./ex19</i>
(SNES-example), <i class="">mpirun
./ex19</i> or <i class="">mpirun -n 1
./ex19</i>, all with the same result.</p>
<p class="">Regards,</p>
<p class="">Roland<br class="">
</p>
<div class="moz-cite-prefix">Am 11.10.21
um 14:22 schrieb Matthew Knepley:<br
class="">
</div>
<blockquote type="cite"
cite="mid:CAMYG4Gk+KxdcmJ27ZEoS1UFK4bfY5hgD8PLuc7rL4UNe219K3g@mail.gmail.com"
class="">
<div dir="ltr" class="">
<div dir="ltr" class="">On Mon, Oct
11, 2021 at 8:07 AM Roland Richter
<<a
href="mailto:roland.richter@ntnu.no"
moz-do-not-send="true"
class="moz-txt-link-freetext">roland.richter@ntnu.no</a>>
wrote:<br class="">
</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 class="">
<p class="">Hei,</p>
<p class="">at least in gdb it
fails with</p>
<p class=""><span
style="font-family:monospace"
class=""><span
style="background-color:
rgb(255, 255, 255);"
class="">Attempting to use
an MPI routine before
initializing MPICH </span><br
class="">
[Inferior 1 (process 7854)
exited with code 01] <br
class="">
(gdb) backtrace <br
class="">
No stack.<br class="">
</span></p>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">What were you running?
If it never makes it into PETSc
code, I am not sure what we are</div>
<div class="">doing to cause this.</div>
<div class=""><br class="">
</div>
<div class=""> Thanks,</div>
<div class=""><br class="">
</div>
<div class=""> Matt</div>
<div class=""> </div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div class="">
<p class=""><span
style="font-family:monospace"
class=""> </span>Regards,</p>
<p class="">Roland<br class="">
<span
style="font-family:monospace"
class=""></span></p>
<div class="">Am 11.10.21 um
13:57 schrieb Matthew Knepley:<br
class="">
</div>
<blockquote type="cite" class="">
<div dir="ltr" class="">
<div dir="ltr" class="">On
Mon, Oct 11, 2021 at 5:24
AM Roland Richter <<a
href="mailto:roland.richter@ntnu.no"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">roland.richter@ntnu.no</a>>
wrote:<br class="">
</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">Hei,<br
class="">
<br class="">
I compiled PETSc with
Intel MPI (MPICH) and
GCC as compiler (i.e.
using<br class="">
Intel OneAPI together
with the supplied
mpicxx-compiler).
Compilation<br class="">
and installation worked
fine, but running the
tests resulted in the<br
class="">
error "Attempting to use
an MPI routine before
initializing MPICH". A<br
class="">
simple test program
(attached) worked fine
with the same
combination.<br class="">
<br class="">
What could be the reason
for that?<br class="">
</blockquote>
<div class=""><br class="">
</div>
<div class="">Hi Roland,</div>
<div class=""><br class="">
</div>
<div class="">Can you get
a stack trace for this
error using the
debugger?</div>
<div class=""><br class="">
</div>
<div class=""> Thanks,</div>
<div class=""><br class="">
</div>
<div class=""> Matt</div>
<div class=""> </div>
<blockquote
class="gmail_quote"
style="margin:0px 0px
0px
0.8ex;border-left:1px
solid
rgb(204,204,204);padding-left:1ex">
Thanks!<br class="">
<br class="">
Regards,<br class="">
<br class="">
Roland Richter<br
class="">
</blockquote>
</div>
<br class="" clear="all">
<div class=""><br class="">
</div>
-- <br class="">
<div dir="ltr" class="">
<div dir="ltr" class="">
<div class="">
<div dir="ltr"
class="">
<div class="">
<div dir="ltr"
class="">
<div class="">What
most
experimenters
take for
granted before
they begin
their
experiments is
infinitely
more
interesting
than any
results to
which their
experiments
lead.<br
class="">
-- Norbert
Wiener</div>
<div class=""><br
class="">
</div>
<div class=""><a
href="http://www.cse.buffalo.edu/~knepley/" target="_blank"
moz-do-not-send="true"
class="">https://www.cse.buffalo.edu/~knepley/</a><br
class="">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
<br class="" clear="all">
<div class=""><br class="">
</div>
-- <br class="">
<div dir="ltr" class="gmail_signature">
<div dir="ltr" class="">
<div class="">
<div dir="ltr" class="">
<div class="">
<div dir="ltr" class="">
<div class="">What most
experimenters take for
granted before they
begin their experiments
is infinitely more
interesting than any
results to which their
experiments lead.<br
class="">
-- Norbert Wiener</div>
<div class=""><br class="">
</div>
<div class=""><a
href="http://www.cse.buffalo.edu/~knepley/"
target="_blank"
moz-do-not-send="true"
class="">https://www.cse.buffalo.edu/~knepley/</a><br
class="">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
</blockquote>
</div>
<span id="cid:3B71A0CF-7121-40E3-AC68-DB609803623C"><configure.log></span></div>
</blockquote>
</div>
<br class="">
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