Posts by Alex


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1) Message boards : Number crunching : Using onboard graphics with discrete GPU for CUDA (Message 990556)
Posted 1584 days ago by Profile Alex
Got it, thanks! Turns out I had to re-enable the onboard graphics in the BIOS. Whee...
2) Message boards : Number crunching : Using onboard graphics with discrete GPU for CUDA (Message 990379)
Posted 1585 days ago by Profile Alex
Hi all - quick question on CUDA. I finally yesterday bought a graphics card for my cruncher, and it's happily tearing through all the work that's thrown at it. Before I had this card, though, I was able to run CUDA tasks on my onboard mobo graphics chipset. Granted it was pretty slow - but it worked. Now it seems to be turned off - does anyone know if it's possible to activate that again, if only to have two devices running CUDA at once?

Thanks!
3) Questions and Answers : GPU applications : CUDA still hangs! (Message 893526)
Posted 1928 days ago by Profile Alex
I just found this posted in another thread, but worth a shot. May be useful in determining if you have a faulty vidcard:

https://simtk.org/home/memtest/


Thanks! I've been running it for about 1000 iterations now, and it's actually found 32 errors so far. I'm going to call the card manufacturer tomorrow, and see if I can get this replaced or repaired.
4) Questions and Answers : GPU applications : CUDA still hangs! (Message 893363)
Posted 1929 days ago by Profile Alex
Well, I can't RMA it (only 30 day warranty), and I even when I shut down and restart BOINC, it still tries to do the hung task. I guess I'm stuck just checking the machine every few hours, and hoping it hasn't hung! Hopefully a future app release will fix these issues.
5) Questions and Answers : GPU applications : CUDA still hangs! (Message 893121)
Posted 1929 days ago by Profile Alex
Nope, I'm getting work units that hang again! Just came home and it had gotten stuck on one at 0% for 4 hours.

Any more ideas on how I can fix this?
6) Questions and Answers : GPU applications : CUDA still hangs! (Message 892802)
Posted 1930 days ago by Profile Alex
Thanks for the link! Hopefully that'll work without a hitch. Everything seems to be going ok for right now, but I'll post if they start sticking again.

Thanks!
7) Questions and Answers : GPU applications : CUDA still hangs! (Message 892719)
Posted 1931 days ago by Profile Alex
Thanks for your help! I've disabled anything else running on this machine, and never have the screensaver on. I can't for the life of me find MB_6.08_mod_CUDA_V11_VLARKill_refined.exe, I find a lot of references to it, but not a place to download it. Where can I find this app?

Thanks!
8) Questions and Answers : GPU applications : CUDA still hangs! (Message 892608)
Posted 1931 days ago by Profile Alex
Right now my CPU cores are all at 100% according to SpeedFan, and the GPU is maxing out at about 57 degrees C. Task Manager says I'm using 516MB of the RAM I have right now, and BOINC is set to use 90% while in use. Vista's a bit of a memory-hog, so I'm still running XP right now.

I usually seem to have to abort the hanging tasks, and afterwards it works fine for another dozen CUDA tasks until it finds one it hangs on again. I'm not sure it's hardware related - I know there are some issues with BOINC and CUDA still. Are there any optimized apps out there that have gotten around these issues?
9) Questions and Answers : GPU applications : CUDA still hangs! (Message 892269)
Posted 1932 days ago by Profile Alex
Hey all. I've been getting CUDA tasks that hang randomly until I either suspend and restart them (and BOINC) or abort them completely. I've gone through the forums and I thought I had the problem fixed, but it seems to be doing it again. I was hoping someone could look at my app_info file and let me know if I'm using the wrong apps, and what I'm doing wrong. Thanks, I really appreciate any help you can give!

Machine specs:
Phenom 8450 - Triple-core
2GB RAM
9600 GT 512MB
Windows XP SP2 32bit

<app_info>
<app>
<name>astropulse</name>
</app>
<file_info>
<name>ap_5.00r103_SSE3.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>astropulse</app_name>
<version_num>500</version_num>
<flops>5633505003</flops>
<file_ref>
<file_name>ap_5.00r103_SSE3.exe</file_name>
<main_program/>
</file_ref>
</app_version>

<app>
<name>astropulse_v5</name>
</app>
<file_info>
<name>ap_5.03r112_SSE3.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>astropulse_v5</app_name>
<version_num>503</version_num>
<flops>6509828003</flops>
<file_ref>
<file_name>ap_5.03r112_SSE3.exe</file_name>
<main_program/>
</file_ref>
</app_version>

<app>
<name>setiathome_enhanced</name>
</app>
<file_info>
<name>AK_v8_win_SSE3.exe</name>
<executable/>
</file_info>
<file_info>
<name>MB_6.08_mod_CUDA_V11_NoPerfLog.exe</name>
<executable/>
</file_info>
<file_info>
<name>cudart.dll</name>
<executable/>
</file_info>
<file_info>
<name>cufft.dll</name>
<executable/>
</file_info>
<file_info>
<name>libfftw3f-3-1-1a_upx.dll</name>
<executable/>
</file_info>
<app_version>
<app_name>setiathome_enhanced</app_name>
<version_num>603</version_num>
<platform>windows_intelx86</platform>
<flops>4381615002</flops>
<file_ref>
<file_name>AK_v8_win_SSE3.exe</file_name>
<main_program/>
</file_ref>
</app_version>

<app_version>
<app_name>setiathome_enhanced</app_name>
<version_num>608</version_num>
<platform>windows_intelx86</platform>
<avg_ncpus>0.127970</avg_ncpus>
<max_ncpus>0.127970</max_ncpus>
<flops>7400000000</flops>
<plan_class>cuda</plan_class>
<file_ref>
<file_name>MB_6.08_mod_CUDA_V11_NoPerfLog.exe</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>cudart.dll</file_name>
</file_ref>
<file_ref>
<file_name>cufft.dll</file_name>
</file_ref>
<file_ref>
<file_name>libfftw3f-3-1-1a_upx.dll</file_name>
</file_ref>
<coproc>
<type>CUDA</type>
<count>1</count>
</coproc>
</app_version>
</app_info>
10) Message boards : Number crunching : Hard drive importance? (Message 862542)
Posted 2022 days ago by Profile Alex
Ok, thanks for everyone's input. I'm going to try running the computer off of a 4GB flash drive for now, mainly because the spare hard drives I have are whiny and loud. Hopefully this will quiet it all up a bit, and save a little on power at the same time.

I'll post again if the drive dies in the next few months, but I hope it lasts at least a year to justify the cost and effort!
11) Message boards : Number crunching : Hard drive importance? (Message 861082)
Posted 2026 days ago by Profile Alex
Ok, thanks for the responses! I'm mainly interested in ways to keep power consumption down (as down as a 24/7 cruncher can be, of course), and was toying with the idea of using a CF card or a USB stick as the hard drive because they have lower power draws.
12) Message boards : Number crunching : Hard drive importance? (Message 860976)
Posted 2026 days ago by Profile Alex
Hi all, I can't seem to find much about this on the forums, so I thought I'd ask.

I'm looking to build a dedicated PC for SETI, and was wondering how important hard drive speed really is to the whole process. I know that BOINC caches some files to the drive, but if I put a slower drive in there (like, say, something as slow as a CF card), will I notice any difference in speed?


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