<div dir="ltr"><div>Please report the exact conditions under which you are running the 24-processor case: something like <br></div> mpirun -np 24 pw.x -nk .. -nd .. -whatever_option<br><div><br></div><div>Paolo<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 29, 2018 at 11:49 PM, Martina Lessio <span dir="ltr"><<a href="mailto:ml4132@columbia.edu" target="_blank">ml4132@columbia.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Dear all,</div><div><br></div><div>I have been successfully using QE 5.4 for a while now but recently decided to install the newest version hoping that some issues I have been experiencing with 5.4 would be resolved. However, I now have some issues when running version 6.3 in parallel. In particular, if I run a sample calculation (input file provided below) on more than 16 processors the calculation crashes after printing this line "Starting wfcs are random" and the following error message is printed in the output file:</div><div>[compute-0-5.local:5241] *** An error occurred in MPI_Bcast<br>[compute-0-5.local:5241] *** on communicator MPI COMMUNICATOR 20 SPLIT FROM 18<br>[compute-0-5.local:5241] *** MPI_ERR_TRUNCATE: message truncated<br>[compute-0-5.local:5241] *** MPI_ERRORS_ARE_FATAL: your MPI job will now abort<br>------------------------------<wbr>------------------------------<wbr>--------------<br>mpirun has exited due to process rank 16 with PID 5243 on<br>node compute-0-5.local exiting improperly. There are two reasons this could occur:<br><br>1. this process did not call "init" before exiting, but others in<br>the job did. This can cause a job to hang indefinitely while it waits<br>for all processes to call "init". By rule, if one process calls "init",<br>then ALL processes must call "init" prior to termination.<br><br>2. this process called "init", but exited without calling "finalize".<br>By rule, all processes that call "init" MUST call "finalize" prior to<br>exiting or it will be considered an "abnormal termination"<br><br>This may have caused other processes in the application to be<br>terminated by signals sent by mpirun (as reported here).<br>------------------------------<wbr>------------------------------<wbr>--------------<br>[compute-0-5.local:05226] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal<br>[compute-0-5.local:05226] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages</div><div><br></div><div><br></div><div>Note that I have been running QE 5.4 on 24 cpu on this same computer cluster without any issue. I am copying my input file at the end of this email.<br></div><div><br></div><div>Any help with this would be greatly appreciated.</div><div>Thank you in advance.</div><div><br></div><div>All the best,</div><div>Martina<br></div><div><br><div dir="ltr" class="m_-961522314054628027gmail_signature"><div dir="ltr"><div><div dir="ltr">Martina Lessio<br><div>Department of Chemistry</div><div>Columbia University</div><div><br></div><div><b>Input file:</b></div><div>&control<br> calculation = 'relax'<br> restart_mode='from_scratch',<br> prefix='MoTe2_bulk_opt_1',<br> pseudo_dir = '/home/mlessio/espresso-5.4.0/<wbr>pseudo/',<br> outdir='/home/mlessio/<wbr>espresso-5.4.0/tempdir/'<br> /<br> &system<br> ibrav= 4, A=3.530, B=3.530, C=13.882, cosAB=-0.5, cosAC=0, cosBC=0,<br> nat= 6, ntyp= 2,<br> ecutwfc =60.<br> occupations='smearing', smearing='gaussian', degauss=0.01<br> nspin =1<br> /<br> &electrons<br> mixing_mode = 'plain'<br> mixing_beta = 0.7<br> conv_thr = 1.0d-10<br> /<br> &ions<br> /<br>ATOMIC_SPECIES<br> Mo 95.96 Mo_ONCV_PBE_FR-1.0.upf<br> Te 127.6 Te_ONCV_PBE_FR-1.1.upf<br>ATOMIC_POSITIONS {crystal}<br>Te 0.333333334 0.666666643 0.625000034<br>Te 0.666666641 0.333333282 0.375000000<br>Te 0.666666641 0.333333282 0.125000000<br>Te 0.333333334 0.666666643 0.874999966<br>Mo 0.333333334 0.666666643 0.250000000<br>Mo 0.666666641 0.333333282 0.750000000<br><br>K_POINTS {automatic}<br> 8 8 2 0 0 0<br><br></div></div></div></div></div></div></div></div></div></div>
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