Dear all, is it possible that ph.x requires almost 10 times as much memory as a single scf run?
I run a job on 5 nodes and 120 cores with a total allocated RAM of 600 GB in and the scf run tells me that Estimated total dynamical RAM > 7.92 GB However the phonon run exceeds the available memory during "electric fields calculation". I read that due to differences in parallelization ph.x requires more RAM than pw.x but a factor of almost 10 seems very high? node configuration is 2 12-core Intel Xeon E5-2680 v3 at 2.50GHz (24 in total) and 120GB of usable RAM. Thanks in advance for your help and have a nice Sunday everyone! Chris -- Postdoctoral Researcher Center for Quantum Nanoscience, Institute for Basic Science Ewha Womans University, Seoul, South Korea
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