Meine letzten beiden Postings bezogen sich auf BOINC/Aqua, nur zur Klarstellung. Nein, bin kein Beta-Tester, da fehlt's mir an Grundlegendem.
Der SMP-Client ist bei jedem Start mit dem u.g. Parameter "-np 4" gestartet, automatisch also mit allen vier Kernen, so zumindest verstehe ich den Wert "4" laut
http://fahwiki.net/index.php/SMP_client#mpiexec
Womit ich wenig anfangen kann, ist die Angabe "
Average load imbalance" (Abschnitt *** stammt aus dem von mir gespeicherten "Produktiv"-Log, nicht aus der FahLog.txt)), im FAH-Forum war der gepostete Wert höher als meiner,
bruce schreibt dazu:
- "For SMP clients, there is an inevitable imbalance. Whether it can be reduced or not, the responsibility for adjusting it belongs to the researcher who configured that particular project. If other tasks are running concurrently, they can change the imbalance.
Consider the fact that the benchmark for that project had the same imbalance, (provided you're running one FahCore per real CPU, as the Pande Group recommends) so you'll still be getting the same PPD as you would if the project had originally been configured with a different imbalance."
Was bedeutet bei ***Performance die Angabe "
Mnbf/s" ? Kann keine Erklärung finden, nur gepostete Werte.
Zum Ende des SMP-Betriebes (ohne paralleles BOINC, um Festplattenkonflikte nicht zu provozieren) hatte sich die Berechnungsdauer pro Schritt nochmal verkürzt auf konstant unter 8 Minuten.

Was der vor zwei Jahren eingeführte Kentsfield im Standardtakt doch noch leisten kann.
Code: Alles auswählen
Launch directory: /home/x1900aiw/folding
Executable: ./fah6
Arguments: -smp -verbosity 9
...
[07:26:54] Working on Unit 01 [August 17 07:26:54]
[07:26:54] + Working ...
[07:26:54] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -checkpoint 30 -verbose -lifeline 2374 -version 602'
...
[08:20:58] Working on Unit 01 [August 17 08:20:58]
[08:20:58] + Working ...
[08:20:58] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 3583 -version 602'
...
[17:18:08] Working on Unit 01 [August 17 17:18:08]
[17:18:08] + Working ...
[17:18:08] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 15380 -version 602'
...
[06:49:54] Working on Unit 01 [August 18 06:49:54]
[06:49:54] + Working ...
[06:49:54] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 18049 -version 602'
...
[09:33:16] Working on Unit 01 [August 18 09:33:16]
[09:33:16] + Working ...
[09:33:16] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 4663 -version 602'
...
[10:42:28] Working on Unit 01 [August 18 10:42:28]
[10:42:28] + Working ...
[10:42:28] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 8515 -version 602'
...
[12:40:35] Working on Unit 01 [August 18 12:40:35]
[12:40:35] + Working ...
[12:40:35] - Calling './mpiexec -np 4 -host 127.0.0.1 ./FahCore_a2.exe -dir work/ -suffix 01 -priority 96 -checkpoint 30 -verbose -lifeline 9443 -version 602'
...
[12:40:55] Completed 207509 out of 250000 steps (83%)
[12:48:39] Completed 210000 out of 250000 steps (84%)
[12:55:55] Completed 212500 out of 250000 steps (85%)
[13:03:14] Completed 215000 out of 250000 steps (86%)
[13:10:32] Completed 217500 out of 250000 steps (87%)
[13:17:54] Completed 220000 out of 250000 steps (88%)
[13:25:12] Completed 222500 out of 250000 steps (89%) > ~7,5 Minuten
[13:32:30] Completed 225000 out of 250000 steps (90%)
[13:39:51] Completed 227500 out of 250000 steps (91%)
[13:47:11] Completed 230000 out of 250000 steps (92%)
[13:54:28] Completed 232500 out of 250000 steps (93%)
[14:01:46] Completed 235000 out of 250000 steps (94%)
[14:09:05] Completed 237500 out of 250000 steps (95%)
[14:16:23] Completed 240000 out of 250000 steps (96%)
[14:23:41] Completed 242500 out of 250000 steps (97%)
[14:31:01] Completed 245000 out of 250000 steps (98%)
[14:38:18] Completed 247500 out of 250000 steps (99%)
[14:45:38] Completed 250000 out of 250000 steps (100%)
***Writing final coordinates.
***
*** Average load imbalance: 2.4 %
*** Part of the total run time spent waiting due to load imbalance: 1.5 %
*** Steps where the load balancing was limited by -rdd, -rcon and/or -dds: Z 0 %
***
***
*** Parallel run - timing based on wallclock.
***
*** NODE (s) Real (s) (%)
*** Time: 7485.000 7485.000 100.0
*** 2h04:45
*** (Mnbf/s) (GFlops) (ns/day) (hour/ns)
***Performance: 295.121 12.396 0.981 24.465
***
***gcq#0: Thanx for Using GROMACS - Have a Nice Day
...
[14:45:39] DynamicWrapper: Finished Work Unit: sleep=10000
[14:45:49]
[14:45:49] Finished Work Unit:
[14:45:49] - Reading up to 21190320 from "work/wudata_01.trr": Read 21190320
[14:45:50] trr file hash check passed.
[14:45:50] - Reading up to 27138056 from "work/wudata_01.xtc": Read 27138056
[14:45:50] xtc file hash check passed.
[14:45:50] edr file hash check passed.
[14:45:50] logfile size: 186275
[14:45:50] Leaving Run
[14:45:51] - Writing 48659403 bytes of core data to disk...
[14:45:51] ... Done.
Error encountered before initializing MPICH
[14:45:57] - Shutting down core
[14:45:57]
[14:45:57] Folding@home Core Shutdown: FINISHED_UNIT
[14:49:11] CoreStatus = 64 (100)
[14:49:11] Unit 1 finished with 56 percent of time to deadline remaining.
[14:49:11] Updated performance fraction: 0.564228
[14:49:11] Sending work to server
Zusammenkommen ist ein Beginn, Zusammenbleiben ist ein Fortschritt, Zusammenarbeiten ist ein Erfolg.
Henry Ford