GPU AP performance tuning

In this thread http://lunatics.kwsn.net/12-gpu-crunching/new-set-of-test-tasks-for-gpu-ap.msg49310.html#msg49310 new test tasks for AP are available, prepared specially for GPU AP performance tuning. There also tuning results will be posted. If you are interesting in GPU AP performance boost take a look.

Hi

'Sorry, registration is currently disabled.' at lunatics so I write here.

Here is 2600K@4300MHz, HT disabled, CPU idle, GTX 690:

AppName: AP6_win_x86_SSE2_OpenCL_NV_r1363.exe
AppArgs: -unroll 8 -ffa_block 4096 -ffa_block_fetch 4096
TaskName: Clean_20LC.wu
Started at : 14:57:05.433
Ended at : 15:02:23.984
318.520 secs Elapsed
312.829 secs CPU time

Now that I found out how to setup testing environment and I have couple of days free from work I can run tests if there is something you want to know.

-Kimmo-

1 ms is too short to try to sleep IMHO.
you need to increase ffa_block a lot before make any use of sleep.
In Windows OS standard time slice value is 20ms. Yield control for 1ms will make only big overhead... but you can try anyway, just find what value for large FFA would be (look for considerably bigger numbers for sleep times in log)

I did put the rev.1363 app. in place, had the 1316 app.
again, waiting for some AstroPulse work, which I got.
They have to be computed yet.Parameters: unroll 15; ffa_block 10240; ffa_blck_fetch 5120; 1 instance_per_device (HD5870 {2x} crossfire disabled,
{software through CCC}.
Looking at results I've come across this one.
AP wuid
1044634527, something went very wrong?
____________


Knight Who Says Ni N!, OUT numbered.................

I did put the rev.1363 app. in place, had the 1316 app.
again, waiting for some AstroPulse work, which I got.
They have to be computed yet.Parameters: unroll 15; ffa_block 10240; ffa_blck_fetch 5120; 1 instance_per_device (HD5870 {2x} crossfire disabled,
{software through CCC}.
Looking at results I've come across this one.
AP wuid
1044634527, something went very wrong?

### Restart at 0.90 percent.

### Restart at 3.60 percent.

### Restart at 3.60 percent.

### Restart at 6.31 percent.

### Restart at 8.11 percent.

### Restart at 8.11 percent.

### Restart at 15.32 percent.

### Restart at 15.32 percent.

### Restart at 15.32 percent.

### Restart at 15.32 percent.
state.fold_buf_size_short=65536; state.fold_buf_size_long=262144
Info : Building Program (binary, clBuildProgram):main kernels: OK code 0

Termination request detected. GPU device synched, awaiting termination...
Running on device number: 0
DATA_CHUNK_UNROLL at default:2
DATA_CHUNK_UNROLL at default:2
Priority of worker thread raised successfully
Priority of process adjusted successfully, below normal priority class used
OpenCL platform detected: Advanced Micro Devices, Inc.
BOINC assigns device 0
Info: BOINC provided device ID used
Used GPU device parameters are:
Number of compute units: 10
Single buffer allocation size: 256MB
max WG size: 256
ERROR: both checkpoint files are damaged, aborting task

Kamu,

How do you manage to get 3 instances of GTX 690 into same machine ID: 6720006?

I thought GTX690 units were always added in multiples of 2.

I did put the rev.1363 app. in place, had the 1316 app.
again, waiting for some AstroPulse work, which I got.
They have to be computed yet.Parameters: unroll 15; ffa_block 10240; ffa_blck_fetch 5120; 1 instance_per_device (HD5870 {2x} crossfire disabled,
{software through CCC}.
Looking at results I've come across this one.
AP wuid
1044634527, something went very wrong?

recheck your unroll

from your WU data

DATA_CHUNK_UNROLL at default:2

I'm wondering why his unroll shows 2 when he said he'd changed it to 15

I'm wondering why his unroll shows 2 when he said he'd changed it to 15

Fred hasn't completed that Wu yet, it's his wingman that has errored out, a person called Coldice.

Claggy

I'm wondering why his unroll shows 2 when he said he'd changed it to 15

Freds posts are always a little confusing.
But i get used to it.

Stock 6.04 and r1316 are just the same in principle Fred.

____________

I wondered why the rev.1363 LUNATICs app.(6.01) is shown as AstroPulse v6 v6.04 (opencl_ati_100)? And what went wrong?

In this AP WU
.

And you beat me to it ;-)

AstroPulse v.6
Non-graphics FFTW USE_CONVERSION_OPT
Windows x86 rev 1316, V6 match, by Raistmer with support of Lunatics.kwsn.net team. SSE2

I'm wondering why his unroll shows 2 when he said he'd changed it to 15

Freds posts are always a little confusing.
But i get used to it.

Then I apollogize for this and try to be more specific.......

(Three GTX690 were reported, 1 690 and 1 680 was used, see a few posts back).

That would be my ATI host, using unroll 15,
ffa_block 10240 and ffa_block_fetch 5120 1 instance_per_device

I wondered why the rev.1363 LUNATICs app.(6.01) is shown as AstroPulse v6 v6.04 (opencl_ati_100)? And what went wrong?

In this AP WU
.

And you beat me to it ;-)