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MFlowCode / MFC

Exascale simulation of multiphase/physics fluid dynamics
https://mflowcode.github.io
MIT License
137 stars 60 forks source link

[bug] Rebuilding HDF5 #352

Closed sbryngelson closed 4 months ago

sbryngelson commented 5 months ago

We appear to (fully) rebuild HDF5 with every instantiation of ./mfc.sh run [...] -t post_process (at least on GPU). It takes non-negligible time (at least a few minutes).

sbryngelson commented 5 months ago

Update: This is still happening. @henryleberre, can you try it on your end and confirm there isn't a fix? I just re-confirmed that this still happens (rebuilds HDF5 and Silo every post-process run). I'm, of course, willing to tolerate this, but if there's a simple fix, we should leave this issue open.

Update 2.0: I could not reproduce the "It takes non-negligible time (at least a few minutes)." I'm not sure what I was doing that led to the few minutes case. I was able to reproduce maybe 20 seconds for the partial rebuild or link.

henryleberre commented 5 months ago

@sbryngelson Not sure. Maybe #365 had something to do with this?

sbryngelson commented 4 months ago

Maybe. This problem is salient on slower machines or slow internet. At least this is what I found the other day testing on a MacOS VM.