Reply To: Example issues on Cluster
Hi Mathias, I have been doing some tests to load the saved files but so far I haven’t been able to load them properly running either serial or parallel (MPI). The output generates an error like the following:
[prepareGeometry] Prepare Geometry … OK [prepareLattice] defining dynamics [prepareLattice] Prepare Lattice … OK [LAPTOP-H5JAJF81:01813] *** Process received signal *** [LAPTOP-H5JAJF81:01813] Signal: Segmentation fault (11) [LAPTOP-H5JAJF81:01813] Signal code: Address not mapped (1) [LAPTOP-H5JAJF81:01813] Failing at address: 0x1a8 [LAPTOP-H5JAJF81:01813] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x46210)[0x7fba20e16210] [LAPTOP-H5JAJF81:01813] [ 1] ./prueba2D(+0x5b150)[0x7fba21525150] [LAPTOP-H5JAJF81:01813] [ 2] ./prueba2D(+0x70dec)[0x7fba2153adec] [LAPTOP-H5JAJF81:01813] [ 3] ./prueba2D(+0x2e773)[0x7fba214f8773] [LAPTOP-H5JAJF81:01813] [ 4] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x7fba20df70b3] [LAPTOP-H5JAJF81:01813] [ 5] ./prueba2D(+0x2ebfe)[0x7fba214f8bfe] [LAPTOP-H5JAJF81:01813] *** End of error message *** ————————————————————————– Primary job terminated normally, but 1 process returned a non-zero exit code. Per user-direction, the job has been aborted. ————————————————————————– [LAPTOP-H5JAJF81:01812] *** Process received signal *** [LAPTOP-H5JAJF81:01812] Signal: Segmentation fault (11) [LAPTOP-H5JAJF81:01812] Signal code: Address not mapped (1) [LAPTOP-H5JAJF81:01812] Failing at address: 0x1a8 [LAPTOP-H5JAJF81:01812] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x46210)[0x7f87fe5a6210] [LAPTOP-H5JAJF81:01812] [ 1] ./prueba2D(+0x5b150)[0x7f87fecaf150] [LAPTOP-H5JAJF81:01812] [ 2] ./prueba2D(+0x70dec)[0x7f87fecc4dec] [LAPTOP-H5JAJF81:01812] [ 3] ./prueba2D(+0x2e773)[0x7f87fec82773] [LAPTOP-H5JAJF81:01812] [ 4] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x7f87fe5870b3] [LAPTOP-H5JAJF81:01812] [ 5] ./prueba2D(+0x2ebfe)[0x7f87fec82bfe] [LAPTOP-H5JAJF81:01812] *** End of error message *** ————————————————————————– mpirun noticed that process rank 2 with PID 0 on node LAPTOP-H5JAJF81 exited on signal 11 (Segmentation fault).
I don’t know if I’m calling the load function properly, so I’ll leave you part of the code, I appreciate if you can check this part:
NSlattice.addLatticeCoupling(coupling, ADlattice);
prepareLattice(converter, NSlattice, ADlattice, superGeometry);
/// === 4th Step: Main Loop with Timer ===
std::size_t iT = 0;
util::Timer<T> timer(converter.getLatticeTime(maxPhysT), superGeometry.getStatistics().getNvoxel() );
util::ValueTracer<T> converge(converter.getLatticeTime(0.01),epsilon);
// checks whether there is already data of the fluid from an earlier calculation
if ( !(NSlattice.load(“NSprueba2DCoupled”))){
// if there is no data available, it is generated
timer.start();
for ( ; iT < converter.getLatticeTime(maxPhysT); ++iT) {
if (converge.hasConverged()) {
clout << “Simulation converged.” << std::endl;
getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, file, converge.hasConverged());
clout << “Time ” << iT << “.” << std::endl;
break;
}
/// === 5th Step: Definition of Initial and Boundary Conditions ===
setBoundaryValues(converter, NSlattice, ADlattice, iT, superGeometry);
/// === 6th Step: Collide and Stream Execution ===
ADlattice.collideAndStream();
NSlattice.collideAndStream();
NSlattice.executeCoupling();
/// === 7th Step: Computation and Output of the Results ===
getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, file, converge.hasConverged());
converge.takeValue(ADlattice.getStatistics().getAverageEnergy(),true);
}
timer.stop();
timer.printSummary();
}
// if there exists already data of the fluid from an earlier calculation, this is used
else{
NSlattice.load(“NSprueba2DCoupled”);
ADlattice.load(“ADprueba2DCoupled”);
NSlattice.postLoad();
ADlattice.postLoad();
iT = lastCPTime;
timer.update(iT);
for ( ; iT < converter.getLatticeTime(maxPhysT); ++iT) {
if (converge.hasConverged()) {
clout << “Simulation converged.” << std::endl;
getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, file, converge.hasConverged());
clout << “Time ” << iT << “.” << std::endl;
break;
}
/// === 5th Step: Definition of Initial and Boundary Conditions ===
setBoundaryValues(converter, NSlattice, ADlattice, iT, superGeometry);
/// === 6th Step: Collide and Stream Execution ===
ADlattice.collideAndStream();
NSlattice.collideAndStream();
NSlattice.executeCoupling();
/// === 7th Step: Computation and Output of the Results ===
getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, file, converge.hasConverged());
converge.takeValue(ADlattice.getStatistics().getAverageEnergy(),true);
}
timer.stop();
timer.printSummary();
}