X87 FPU's (since 8087) support 80bit precision on long double - if anyone makes use of this, he's pretty much of any idiot expecting matching results now on GPU's which are limited to 64 bits.
X87 FPU's (since 8087) support 80bit precision on long double - if anyone makes use of this, he's pretty much of any idiot expecting matching results now on GPU's which are limited to 64 bits.
no idea if this is the case over here...
Hi Frank,
AFAIK floating point math is nowadays done via SSE2, x87 instructions are no longer used. SSE2 should be faster and does not have the same problems as x87 (google "x87 fpu gcc" for example).
AFAIK floating point math is nowadays done via SSE2, x87 instructions are no longer used. SSE2 should be faster and does not have the same problems as x87 (google "x87 fpu gcc" for example).
of course - if SSE/SSE2 is enabled - but afaik 80 bit internal precision is allways there.
if you choose 80 precsion for your data types (see http://en.wikipedia.org/wiki/Long_double), you should know what that means when porting to a platform limited to 64 bits..
All of my WUs get "Validate error" on NV GTX 560 Ti Driver 266.66. http://einsteinathome.org/host/3604830
I installed on my test-PC (Win XP Pro SP2 Q9550), test-pgm : memtestG80, 3DMArk06 and FurMark are OK.
3 of the result-files seam to be very small (1,xx instead og 3,xx), but all WUs are running through.
I tested MilkiWay : No errors.
I solved my problem : My Card : Gigabyte GTX 560 Ti is overclocked by factory.
The original-settimgs : GPU-clock : 900, Memory : 1002 (2004); Shader : 1800.
The test-pgm say OK, but Einstein and Seti bad !
The new settings : 822 1002 1644
And : Einstein and Seti are running fine now - more than 1 task in parallel !
I think, OC is good for gaming, but not good for crunching.
I have been running without any errors since moving to BRP3 1.07 on WinXP 32 but suddenly they are appearing again. Anyone else seeing this?
Steve
221568568 93136596 1 Mar 2011 3:02:23 UTC 2 Mar 2011 15:34:37 UTC Validate error 5,975.17 2,289.97 18.95 --- Anonymous platform
221568538 92974938 1 Mar 2011 3:02:23 UTC 2 Mar 2011 16:27:37 UTC Validate error 6,145.88 2,233.13 18.48 --- Anonymous platform
221568508 93793075 1 Mar 2011 3:02:23 UTC 2 Mar 2011 12:13:38 UTC Validate error 5,983.30 2,278.50 18.85 --- Anonymous platform
221568156 93842918 1 Mar 2011 3:02:23 UTC 2 Mar 2011 9:33:41 UTC Validate error 6,048.95 2,255.61 18.66 --- Anonymous platform
221568102 93842893 1 Mar 2011 3:02:23 UTC 2 Mar 2011 10:33:51 UTC Validate error 6,024.66 2,184.75 18.08 --- Anonymous platform
221469280 93815840 28 Feb 2011 8:02:12 UTC 2 Mar 2011 6:05:13 UTC Validate error 6,058.81 2,169.44 17.95 --- Anonymous platform
221468610 93815644 28 Feb 2011 7:54:10 UTC 2 Mar 2011 3:52:37 UTC Validate error 6,098.47 2,309.67 19.11 --- Anonymous platform
221340526 93772294 27 Feb 2011 7:36:06 UTC 1 Mar 2011 8:13:02 UTC Validate error 6,105.08 2,250.89 18.98 --- Anonymous platform
since 26 feb 11 every BRP3SSE task on my account have had validate error...
223215550 93765651 3447297 13 Mar 2011 16:53:38 UTC 18 Mar 2011 18:49:32 UTC Validate error 40,416.98 38,586.51 207.94 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
223212119 94463626 3447384 13 Mar 2011 15:46:14 UTC 19 Mar 2011 12:13:36 UTC Validate error 78,568.57 75,959.84 285.00 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
223212115 94463624 3447384 13 Mar 2011 15:46:14 UTC 19 Mar 2011 12:13:36 UTC Validate error 82,000.63 75,054.80 281.60 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
222790528 94303673 3447297 10 Mar 2011 13:42:10 UTC 14 Mar 2011 19:14:32 UTC Validate error 40,269.39 38,770.77 212.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
222356919 94127590 3447384 7 Mar 2011 3:09:26 UTC 12 Mar 2011 6:50:17 UTC Validate error 97,285.01 71,869.72 272.69 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221971066 93975966 3447297 3 Mar 2011 17:48:01 UTC 11 Mar 2011 16:09:39 UTC Validate error 40,873.00 38,556.14 208.33 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221842333 93927568 3447384 2 Mar 2011 12:57:24 UTC 5 Mar 2011 16:35:14 UTC Validate error 98,610.61 71,800.55 263.45 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221084976 93698458 3447297 25 Feb 2011 19:13:04 UTC 27 Feb 2011 21:20:50 UTC Validate error 40,407.19 38,630.16 210.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
219732039 93173845 3447297 14 Feb 2011 13:40:05 UTC 26 Feb 2011 19:13:30 UTC Validate error 39,517.17 38,629.55 210.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
http://einstein.phys.uwm.edu/
http://einsteinathome.org/task/216660699
[19:49:39][268][INFO ] Data processing finished successfully!
19:49:39 (268): called boinc_finish
CPU to Cuda invalid,
CUDA to CUDA is valid
http://einsteinathome.org/workunit/91869578
Matthias
no wonder things like this
no wonder things like this happen.
X87 FPU's (since 8087) support 80bit precision on long double - if anyone makes use of this, he's pretty much of any idiot expecting matching results now on GPU's which are limited to 64 bits.
no idea if this is the case over here...
RE: no wonder things like
Hi Frank,
AFAIK floating point math is nowadays done via SSE2, x87 instructions are no longer used. SSE2 should be faster and does not have the same problems as x87 (google "x87 fpu gcc" for example).
Michael
Team Linux Users Everywhere
RE: AFAIK floating point
of course - if SSE/SSE2 is enabled - but afaik 80 bit internal precision is allways there.
if you choose 80 precsion for your data types (see http://en.wikipedia.org/wiki/Long_double), you should know what that means when porting to a platform limited to 64 bits..
Most WUs have validate errors
Most WUs have validate errors on my main PC
http://einsteinathome.org/host/3362295/tasks&offset=0&show_names=0&state=4
And on the other PC they're OK
http://einsteinathome.org/host/2960782/tasks&offset=0&show_names=0&state=3
The ones with errors already have problems when uploading them
All of my WUs get "Validate
All of my WUs get "Validate error" on NV GTX 560 Ti Driver 266.66.
http://einsteinathome.org/host/3604830
I installed on my test-PC (Win XP Pro SP2 Q9550), test-pgm : memtestG80, 3DMArk06 and FurMark are OK.
3 of the result-files seam to be very small (1,xx instead og 3,xx), but all WUs are running through.
I tested MilkiWay : No errors.
I solved my problem : My Card
I solved my problem : My Card : Gigabyte GTX 560 Ti is overclocked by factory.
The original-settimgs : GPU-clock : 900, Memory : 1002 (2004); Shader : 1800.
The test-pgm say OK, but Einstein and Seti bad !
The new settings : 822 1002 1644
And : Einstein and Seti are running fine now - more than 1 task in parallel !
I think, OC is good for gaming, but not good for crunching.
Validate error 58
Validate error 58 ?
Graphics card problem ?
Google didn't help...
dunx
I have been running without
I have been running without any errors since moving to BRP3 1.07 on WinXP 32 but suddenly they are appearing again. Anyone else seeing this?
Steve
--------------------------
- Crunch, Crunch, Crunch -
--------------------------
since 26 feb 11 every BRP3SSE
since 26 feb 11 every BRP3SSE task on my account have had validate error...
223215550 93765651 3447297 13 Mar 2011 16:53:38 UTC 18 Mar 2011 18:49:32 UTC Validate error 40,416.98 38,586.51 207.94 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
223212119 94463626 3447384 13 Mar 2011 15:46:14 UTC 19 Mar 2011 12:13:36 UTC Validate error 78,568.57 75,959.84 285.00 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
223212115 94463624 3447384 13 Mar 2011 15:46:14 UTC 19 Mar 2011 12:13:36 UTC Validate error 82,000.63 75,054.80 281.60 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
222790528 94303673 3447297 10 Mar 2011 13:42:10 UTC 14 Mar 2011 19:14:32 UTC Validate error 40,269.39 38,770.77 212.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
222356919 94127590 3447384 7 Mar 2011 3:09:26 UTC 12 Mar 2011 6:50:17 UTC Validate error 97,285.01 71,869.72 272.69 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221971066 93975966 3447297 3 Mar 2011 17:48:01 UTC 11 Mar 2011 16:09:39 UTC Validate error 40,873.00 38,556.14 208.33 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221842333 93927568 3447384 2 Mar 2011 12:57:24 UTC 5 Mar 2011 16:35:14 UTC Validate error 98,610.61 71,800.55 263.45 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
221084976 93698458 3447297 25 Feb 2011 19:13:04 UTC 27 Feb 2011 21:20:50 UTC Validate error 40,407.19 38,630.16 210.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)
219732039 93173845 3447297 14 Feb 2011 13:40:05 UTC 26 Feb 2011 19:13:30 UTC Validate error 39,517.17 38,629.55 210.38 --- Binary Radio Pulsar Search v1.05 (BRP3SSE)