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drummers-lowrise
1) Message boards : Generalized Fermat Prime Search : Mac ATI apps temporarily turned off (Message 78421)
Posted 1903 days ago by Profile OdicinProject donor
[quote]Both of my ATI equipped macs (old iMac & new Mac Pro) are erroring out on all GFN GPU tasks :-(

http://www.primegrid.com/results.php?hostid=113925

Is your other GPU double precision? The error message you're getting is "no GPU". I think you'll get that error if there's no double precision GPU available.

As a side note, it seems we have a problem with Linux and Mac builds. When an error like this is detected, it's supposed to wait an hour before reporting the error. That prevents a single computer from trashing thousands of tasks. The delay seems to be broken. We'll fix that part.

But there's nothing we can do about it not running on Single Precision GPUs. Right now, it won't work on FirePro either, but it's unclear whether that can be fixed.


The HD 4850 should have DP. In past (on windows side), I had a lot of trouble with the ati drivers and the opencl support for the old Radeon 4XXX series. AMD dropped the support some years ago and the legacy driver is horrible. The only stable driver with opencl on my side was an old release of 2010 or 2011. But I don't know, how this is in mac world ;)

Regards Odi
2) Message boards : Project Staging Area : 2014 PRPNet June Challenge (Message 77369)
Posted 1945 days ago by Profile OdicinProject donor
GFN262144: INFO: Test for 1100680^262144+1 was ignored. Your application and/or prpclient is obsolete and MUST be upgraded


Are you running an old version of PRPNet or Genefer? Or is something broken?


I also got this message with the latest 5.3.1 prpnet client on this server. On my side this message occurs, when I got the maxerror by the gpu and commented out all cpu executables in prpnet.ini. I think the server handles this "false" message because of the reported roundofferr reside by the client.

Regards Odi
3) Message boards : Project Staging Area : PRPNet 5.3.1 (Message 77271)
Posted 1946 days ago by Profile OdicinProject donor
Having a curious problem on one of my clients with the new version:

Running 4 Tasks, 2 on CPU (all is fine) and 2 on GPU with geneferopencl. One GPU running on gpuaffinity=0 in prpclient.ini, the other on gpuaffinity=1. But one of the gpu tasks is problematic with the new prpclient, the other have no problems:

014-06-15 10:56:42 MS] Total Time: 0:49:24 Total Work Units: 1 Special Results Found: 0
[2014-06-15 10:56:42 MS] GFN262144: Returning work to server prpnet.primegrid.com at port 11002
[2014-06-15 10:56:43 MS] GFN262144: INFO: Test for 1078146^262144+1 was accepted
[2014-06-15 10:56:43 MS] GFN262144: INFO: All 1 test results were accepted
[2014-06-15 10:56:44 MS] GFN262144: Getting work from server prpnet.primegrid.com at port 11002
[2014-06-15 10:56:45 MS] GFN262144: PRPNet server is version 5.3.0
[2014-06-15 10:59:34 MS] GFN262144: Could not open file [lresults.txt] for reading. Assuming user stopped with ^C
[2014-06-15 10:59:34 MS] Total Time: 0:52:16 Total Work Units: 1 Special Results Found: 0
[2014-06-15 10:59:34 MS] Client shutdown complete


But I did not have a lresults.txt, also not in the other gpu directory where all is running fine.

Also at this time, i got an entry in memleak.txt:

Dump the changes that occurred between two memory checkpoints
-858993460 bytes in -858993460 Free Blocks.
-858993460 bytes in -858993460 Normal Blocks.
-858998593 bytes in -858993503 CRT Blocks.
-858993460 bytes in -858993460 Ignore Blocks.
-858993460 bytes in -858993460 Client Blocks.
Largest number used: -858998593 bytes.
Total allocations: -859002510 bytes.
Detected memory leaks!
Dumping objects ->
{562} normal block at 0x0069A160, 8 bytes long.
Data: < h > B4 CC 68 00 00 00 00 00
{211} normal block at 0x00699FD8, 8 bytes long.
Data: <, i > 2C E7 69 00 00 00 00 00
{210} normal block at 0x0069A080, 8 bytes long.
Data: <0Uj > 30 55 6A 00 00 00 00 00
Worker.cpp(19) : {208} normal block at 0x006A5528, 36 bytes long.
Data: < @h &h i GFN2> 10 40 68 00 E8 26 68 00 80 A0 69 00 47 46 4E 32
{207} normal block at 0x0069A010, 8 bytes long.
Data: < i > FC E6 69 00 00 00 00 00
ServerHandler.cpp(269) : {204} normal block at 0x0069E6E8, 100 bytes long.
Data: < CJ @h #j &h > 0C 43 4A 00 10 40 68 00 80 23 6A 00 E8 26 68 00
Object dump complete.


Any ideas?

Regards Odi
4) Message boards : Sophie Germain Prime Search : Most credits/WUs with no SGS find (Message 69105)
Posted 2223 days ago by Profile OdicinProject donor
I'm also out of race after 40600 WU's ;)
http://www.primegrid.com/primes/?section=primelist&userid=61485

Regards Odi
5) Message boards : Problems and Help : AMD Radeon 3000 (integrated) (Message 60112)
Posted 2503 days ago by Profile OdicinProject donor
@dancer42: I meant cards with chipset RV6XX, not the type model of Radeon. The HD5XXX or HD6XXX of the Radeon cards have at least the RV8XX chipset, that's why it is no problem to run them with opencl.

The smallest Radeon with RV710 chipset is the Radeon HD4350. So all Radeons HD3XXX and Radeon HD42XX will not run run with opencl.

Regards Odi
6) Message boards : Problems and Help : AMD Radeon 3000 (integrated) (Message 60033)
Posted 2505 days ago by Profile OdicinProject donor
You need at least RV7XX Chipset to run with Opencl. Cards with RV6XX chipset have no OpenCL capabilities and no driver will bring this to them. I tried this 2 years ago.

Meanwhile Collatz Conjecture is the only boinc project which supports these old RV6XX Cards with there Ati Stream App.

Regards Odi
7) Message boards : Sophie Germain Prime Search : Most credits/WUs with no SGS find (Message 58467)
Posted 2551 days ago by Profile OdicinProject donor
Reached the Top 3...

Regards Odi
8) Message boards : Sophie Germain Prime Search : Most credits/WUs with no SGS find (Message 58299)
Posted 2555 days ago by Profile OdicinProject donor
There are also several other PG users ahead of me in the race for that dubious distinction.


Nice Idea... Well, I'm taking place four in the race up on the way to place three ;)

Regards Odi
9) Message boards : Problems and Help : Computation Errors (Message 57598)
Posted 2586 days ago by Profile OdicinProject donor
I believe that to run that series card with OpenCL apps you will need to run a catalyst driver somewhere in the 11.7 to 11.10 range (It has been a long time since I crunched with my HD4670, so anyone please correct me if I am wrong on this range).


Up to 12.4 worked with my HD 4670.

Regards Odi
10) Message boards : Number crunching : PCI to PCI Express adapter - some thoughts please! (Message 54829)
Posted 2700 days ago by Profile OdicinProject donor
But SSE2 could be the problem. The old AMD processor did not support SSE2, only SSE. I must check if there's even a sse2 processor for socket 462 boards available.


Confirmed. New test system: Asrock Combo-Z with Athlon64 2800+ and the same AMD HD4670. Installation of AMD Catalyst 12.2 AGP Edition with APP running fine, all tested OpenCL projects (PPSSieve, POEM, Distrrtgen) running without problems.

Regards Odi


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