Slow down of processing ?

Luxorion
Luxorion
Joined: 16 Oct 06
Posts: 18
Credit: 32,739,581
RAC: 0
Topic 197666

Hi,

Since some weeks (from 24 july) I noted that my system process units slower than before : according to the graphic, the curve shows a lower slope, and the time to process units has increased; it takes now about 12 hrs to process a gamma-ray pulsar search where in the past it took about 8hr (if I remember well).
However, the processing time of my CPU+GPU unit remains the same with about 3h to process.

Globally it seems that my system is about 20-30% slower than before while my soft and hard haven't changed.

Has something changed on the host side (e.g. the volume of units to process, etc) ?

I also note that I only process Gamma-ray pulsar since july 26. Is it normal too ?

About settings, can processes go faster if I set the Einstein preference "Run CPU versions of applications for which GPU versions are available" to NO instead of Yes currently (I use a GTX770 gc)?

Thanks in advance.

My stats:

Logforme
Logforme
Joined: 13 Aug 10
Posts: 332
Credit: 1,714,373,961
RAC: 0

Slow down of processing ?

Quote:
Since some weeks (from 24 july) I noted that my system process units slower than before


Quote:
I also note that I only process Gamma-ray pulsar since july 26.


I believe you answered your question yourself. In my experience the GPU version of FGRP app is "off". Either the credits for the work is too low or the app is horribly inefficient. In either case I believe that if you disable the FGRP GPU app your graph will turn upwards again.

Luxorion
Luxorion
Joined: 16 Oct 06
Posts: 18
Credit: 32,739,581
RAC: 0

I set to "No" the use of CPU

I set to "No" the use of CPU instead of GPU but I do not see the slightest difference but what I see is that for some weeks, my stats are lower than previous months.
I know that the WUs use much more CPU than the GPU, but all this remains seriously dark and unexplained for me.

The 2d "issue", the fact that I only process Gamma-ray pulsar WUs is also strange. I selected all available WU, but for some weekes I only receive gamma-ray pulsars to process.

I leave my system running as it, and I will see in some weeks if something changed.

Anonymous

Your "last contact" log is

Your "last contact" log is showing "insufficient disk space" so it stopped trying to acquire additional work.

your log entries:

2014-08-06 10:19:57.1093 [PID=24598] [send] stopping work search - insufficient disk space
2014-08-06 10:19:57.1093 [PID=24598] [send] stopping work search - insufficient disk space
2014-08-06 10:19:57.1093 [PID=24598] [send] stopping work search - insufficient disk space

Luxorion
Luxorion
Joined: 16 Oct 06
Posts: 18
Credit: 32,739,581
RAC: 0

Yea, the space doesn't seem

Yea, the space doesn't seem to be an issue. I increased it from 100 GB to 200 GB and had no more this alert, now I increased it to 400 GB. We will see what it will tell me. But in all cases it always processes WUs on 8 cpu/gpu.

For the speed, the "No" set for CPU vs GPU option caused the system to run on 6 instead of 8 processors when it uploaded new WUs.
So I reset the use of CPU to yes in the Einstein preferences. Now it uses again on all my processors.

About the fact that my processing time is slower than in july, I found something.
I forgot that on the Boeing Mgr menu, there was also a menu with settings, specially in Tools > Preferences...
There you can set the use of CPU; I decreased it to 80% to be able to use PS CS6. Now I increased it again to 95% when the PC is in use and 99% when the PC is not used.
My performances increased immediately to 99-100% of CPU usage and resolved my slowness.

With so many options to setup, I am not suprised that someting can go wrong somewhere...

Thanks.

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