snapshot file problem

From: Weiguang Cui <cuiweiguang_at_gmail.com>
Date: Thu, 30 Sep 2021 13:23:06 +0100

Dear all,

I recently encountered a problem of snapshot saving with this option on
SUBFIND_STORE_LOCAL_DENSITY in the Config.sh file

The snapshot seems broken:
 h5ls snapdir_037/snap_m200n2048-prevmostboundonly_037.0
snapdir_037/snap_m200n2048-prevmostboundonly_037.0: unable to open file

While the log file for this saving part seems fine:

SUBFIND: Subgroup catalogues saved. took = 8.55254 sec
SUBFIND: Finished with SUBFIND. (total time=1354.58 sec)
SUBFIND: Total number of subhalos with at least 32 particles: 8194200
SUBFIND: Largest subhalo has 19083775 particles/cells.
SUBFIND: Total number of particles/cells in subhalos: 4322986506
FOF: preparing output order of particles took 101.057 sec
MERGERTREE: writing descendant information file:
'.//groups_038/subhalo_desc_038.0' (file 1 of 32)
MERGERTREE: writing descendant information block 0 (DescSubhaloNr)...
MERGERTREE: writing descendant information block 1 (FirstDescSubhaloNr)...
MERGERTREE: writing descendant information block 2 (NextProgSubhaloNr)...
MERGERTREE: writing descendant information block 3 (SubhaloNr)...
MERGERTREE: writing progenitor information file:
'.//groups_039/subhalo_prog_039.0' (file 1 of 32)
MERGERTREE: writing progenitor information block 0 (ProgSubhaloNr)...
MERGERTREE: writing progenitor information block 1 (FirstProgSubhaloNr)...
MERGERTREE: writing progenitor information block 2 (NextDescSubhaloNr)...
MERGERTREE: writing progenitor information block 3 (SubhaloNr)...
MERGERTREE: Was able to identify descendants for 8105748 out of 8266010
subhalos, i.e. for a fraction of 0.980612
MERGERTREE: We have found secondary descendants for 10600 halos out of
8194200 subhalos, i.e. for a fraction of 0.0012936

SNAPSHOT: writing snapshot file #39 _at_ time 1 ...
SNAPSHOT: writing snapshot file:
'.//snapdir_039/snap_m200n2048-prevmostboundonly_039.0' (file 1 of 32)
SNAPSHOT: writing snapshot block 0 (Coordinates)...
SNAPSHOT: writing snapshot block 1 (Velocities)...
SNAPSHOT: writing snapshot block 2 (ParticleIDs)...
SNAPSHOT: writing snapshot block 7 (SubfindDensity)...
SNAPSHOT: writing snapshot block 8 (SubfindHsml)...
SNAPSHOT: writing snapshot block 9 (SubfindVelDisp)...
SNAPSHOT: done with writing snapshot. Took 20.3367 sec, total size 2591.43
MB, corresponds to effective I/O rate of 127.426 MB/sec

SNAPSHOT: There is no valid time for a further snapshot file.

Final time=1 reached. Simulation ends.
RESTART: Writing restart files.
RESTART: Backing up restart files...
RESTART: done renaming pre-existing restart files to bak files.
RESTART: Writing restart files group #1 out of 7...
RESTART: Writing restart files group #2 out of 7...
RESTART: Writing restart files group #3 out of 7...
RESTART: Writing restart files group #4 out of 7...
RESTART: Writing restart files group #5 out of 7...
RESTART: Writing restart files group #6 out of 7...
RESTART: Writing restart files group #7 out of 7...
RESTART: done. load/save took 201.084 sec, total size 1.34741e+06 MB,
corresponds to effective I/O rate of 6700.74 MB/sec
endrun called, calling MPI_Finalize()
bye!

Please let me know if this has only happened to me.

Best,
Weiguang

-------------------------------------------
https://weiguangcui.github.io/
Received on 2021-09-30 14:23:54

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