Forum > GPU crunching
It works!
Geek@Play:
1) When CUDA MB processed task enters in "waiting to run" mode what tasks are in "running" mode ?
At this time I would have 4 AstroPulse work units running on 4 CPU cores.
2) What access state of GPU_lock file (is it accessible or not)
I do not have this file or where it is at. Only have "boinc_lockfile" located in slots folders.
3) Is any progress inside state.sah of task being in "waiting" state.
Included here are 2 state files captured several minutes apart.
4) How many CUDA MB processes running in system at this time
Only the one (1) that is showing "waiting to run" in Boinc Manager.
5) temp of GPU (busy or idle).
65C busy, 56C idle.
[attachment deleted by admin]
Jason G:
Okay,
switched to ncpus = 3, and whammo! .. stuck at 1.712% ... ( I reckon some kindof oversubscription mechanism is at play here )
[Filling in answers as I gather the data]
[Edit:] Now while collecting info, this one jumped from 1.712% to 100%, looks completed
- AR is 0.443445
- Claimed credit says ~1.94 credit ???
- wall time in stderr ~18mins 20 secs. (~Typical full length run)
http://setiathome.berkeley.edu/result.php?resultid=1172313302
--- Quote ---1) When CUDA MB processed task enters in "waiting to run" mode what tasks are in "running" mode ?
3 x AP 5.03 (1 per CPU core +1 )
2) What access state of GPU_lock file (is it accessible or not)
Opens as empty file in notepad without complaint.
3) Is any progress inside state.sah of task being in "waiting" state.
Not visibly, though timestamp was incrementing every checkpoint period etc
4) How many CUDA MB processes running in system at this time
Only the 1 'Waiting to run"
5) temp of GPU (busy or idle).
Busy 75C (normal), if run ATITool at same time, no artefacts.
--- End quote ---
Raistmer:
--- Quote from: Geek@Play on 25 Feb 2009, 12:43:12 pm ---1) When CUDA MB processed task enters in "waiting to run" mode what tasks are in "running" mode ?
At this time I would have 4 AstroPulse work units running on 4 CPU cores.
2) What access state of GPU_lock file (is it accessible or not)
I do not have this file or where it is at. Only have "boinc_lockfile" located in slots folders.
3) Is any progress inside state.sah of task being in "waiting" state.
Included here are 2 state files captured several minutes apart.
4) How many CUDA MB processes running in system at this time
Only the one (1) that is showing "waiting to run" in Boinc Manager.
5) temp of GPU (busy or idle).
65C busy, 56C idle.
--- End quote ---
state.sah1
<prog>0.23420485</prog>
state.sah2
<prog>0.29913810</prog>
That is, task in that slot continue to make progress. It seems all as intended to be.
Now it would be interesting to watch until <prog> value reaches to 1 - what will be with BOINC in this case.
Jason G:
Okay, so why the massive 1.94 credit claim on my full length no progress run ? (See updated run info)
It seems there are no function calls to accumulate the flops while it is running. (compute_fraction_done or whatever Cuda app uses) [Edit: It will be interesting to see what the Wingman Claims).
Geek@Play:
Ageless posted here............
http://setiathome.berkeley.edu/forum_thread.php?id=52090&nowrap=true#869394
This may be a Boinc problem? If so my apologies to Raistmer.
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