heat2d with SST hangs on Titan as it scales
Created by: jychoi-hpc
I am trying to run heat2d with SST on Titan. With a small number of processes (say, 4 heat2d processes and 4 analysis processes), it works.
However, with an increased setting (64 head2d and 64 analysis), it hangs. Here is my aprun command:
aprun \
-n 64 simulation/heatSimulation_adios2 heat 8 8 600 300 10 600 :\
-n 64 analysis/heatAnalysis_adios2_stream heat.bp
I think this problem is related with my previous problem (a variant of heat2d in which not all processes writes, available on Titan: /lustre/atlas2/csc143/proj-shared/jyc/titan/adios2-heat2d)