<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div dir="ltr"><div class="gmail_default"><div class="gmail_default">Hello,<br><br></div><div class="gmail_default">I am an undergraduate student. I have never worked with MPI and I have to use the Einstein Toolkit code which uses MPI for my project. I am running it on my personal laptop, it has two cores and four threads.<br><br></div><div class="gmail_default">I get this error in my simulation:<br><b><br>Fatal error in PMPI_Comm_rank: Invalid communicator, error stack:<br>PMPI_Comm_rank(110): MPI_Comm_rank(comm=0x57ed58e0, rank=0x7ffe6cb18148) failed<br>PMPI_Comm_rank(68).: Invalid communicator<br>[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=609541<br>:<br>system msg for write_line failure : Bad file descriptor<br>------------------------------<wbr>-------------------------<br>Primary job terminated normally, but 1 process returned<br>a non-zero exit code.. Per user-direction, the job has been aborted.<br>------------------------------<wbr>-------------------------<br>------------------------------<wbr>------------------------------<wbr>--------------<br>mpirun detected that one or more processes exited with non-zero status, thus causing<br>the job to be terminated. The first process to do so was:<br><br> Process name: [[32146,1],0]<br> Exit code: 5<br>------------------------------<wbr>------------------------------<wbr>--------------<br></b></div><div class="gmail_default"><br><br></div><div dir="ltr">Please let me know what the problem is and how to solve it.<span></span><span style="color:rgb(68,68,68)"><span style="font-family:arial,helvetica,sans-serif"><span><span><span style="color:rgb(68,68,68)"><font size="2"><span style="font-family:arial,helvetica,sans-serif"></span></font></span></span></span></span></span><span><br></span></div><br></div><div class="gmail_default">Thank You<br></div><div class="gmail_default">Regards<br clear="all"></div><div><div class="m_-4552245513165429473gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span><span style="color:rgb(0,0,0)"><span><font size="2"><b>Swarnim Shashank</b></font></span></span><br></span><div><span style="color:rgb(68,68,68)"><span style="font-family:arial,helvetica,sans-serif">Fourth Year Integrated MSc. Student<br></span></span></div><span style="color:rgb(68,68,68)"><span style="font-family:arial,helvetica,sans-serif"><span><span><span style="color:rgb(68,68,68)"><font size="2"><span style="font-family:arial,helvetica,sans-serif">UM-DAE-</span></font></span></span></span>Centre for Excellence in Basic Sciences<br></span></span></div><span><span style="color:rgb(68,68,68)"><span style="font-family:arial,helvetica,sans-serif">Mumbai</span></span><br></span></div></div></div></div></div></div></div></div></div></div></div></div></div>
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