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Old 2020-03-30, 18:36   #1596
kracker
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mfakto has often been a pain to use with multiple gpu's... it is somehow connected with the output of clinfo(don't exactly know how)... something like -d 10/11 etc might work.
Honestly, mfakto needs a lot of changes - it would be nice if the system gpuowl uses to detect gpu's were implemented here - although that requires code changes and it may be completely different from what mfakto needs and not work... also automatic kernel tuning and selection is needed, which would remove the need of users testing it themselves and adding to the code...
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Old 2020-03-31, 05:23   #1597
kriesel
 
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Quote:
Originally Posted by rebirther View Post
Doesnt work
Needs the right parameters. I run mfakto as follows on multi-gpu systems:

Code:
set gpuappinstance=mfakto-RX550
:set gpuappinstance=mfakto-RX480

mfakto -d 02 >>mfakto.txt

echo At %date% %time% %computername% %gpuappinstance% exited >>\\wdmycloud\ken\sources\mersennes\appwatch\%computername%-%gpuappinstance%.txt
set gpuappinstance=
goto exit

:all the following put mfakto activity on gpu 0:
: 00 01 1 
: this puts it on gpu 1: 02
: this puts it on gpu 2 (the third) 03
:exit
OpenCl supports multiple platforms (eg Intel, AMD, NVIDIA) and multiple devices per platform. First digit is platform, second is device per platform. It's in the help output from the program.
Attached Files
File Type: txt mf-help.txt (1.4 KB, 36 views)

Last fiddled with by kriesel on 2020-03-31 at 05:58
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Old 2020-04-02, 16:37   #1598
DeleteNull
 
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Default Radeon 5500 XT fails in self test.

Hello,


I should post this:
Unknown GPU name, assuming GCN. Please post the device name "gfx1012 (Advanced Micro Devices, Inc.)"


(error message when doing the self test)
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Old 2020-04-03, 13:15   #1599
dannyridel
 
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Same thing with gfx902, which is Vega 8 iGPU, but the error message does no harm
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Old 2020-04-04, 21:05   #1600
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We are running into an issue with the mfakto_Kernels.elf file. (v0.15pre6)

http://srbase.my-firewall.org/sr5/fo...27&postid=6025

I have tried this on my 5500XT and its working, on the 5700XT not. Any ideas how to fix this?


Some more errors seen like this:
Loading binary kernel file mfakto_Kernels.elf

Cannot use binary kernel: its build options (-I. -DVECTOR_SIZE=2 -DGCN -O3 -DMORE_CLASSES -DCL_GPU_SIEVE) are different than the current build options (-I. -DVECTOR_SIZE=2 -DVLIW5 -O3 -DMORE_CLASSES -DCL_GPU_SIEVE). Rebuilding kernels.
Compiling kernels.

Last fiddled with by rebirther on 2020-04-04 at 21:09
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Old 2020-04-05, 22:08   #1601
chalsall
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Quote:
Originally Posted by rebirther View Post
We are running into an issue with the mfakto_Kernels.elf file. (v0.15pre6)

http://srbase.my-firewall.org/sr5/fo...27&postid=6025

I have tried this on my 5500XT and its working, on the 5700XT not. Any ideas how to fix this?
Could anyone help Reb with this issue?

I don't have any OpenCL kit -- I'm an Nvidia guy. And I don't know of any cloud providers which offer access to AMD cards by way of instances.
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Old 2020-04-05, 22:34   #1602
James Heinrich
 
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I have an RX 480, but no insight, since it works fine here (as it does on his 5500XT).
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Old 2020-04-08, 20:47   #1603
kracker
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Going to try to add "support"(bandaid fix is the best term) for newer GPU's... Could I have the output from --perftest for any relatively new GPU's? (Radeon VII, any vega(RX Vega, RX 5xxx etc.
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Old 2020-04-08, 22:33   #1604
ixfd64
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Quote:
Originally Posted by rebirther View Post
We are running into an issue with the mfakto_Kernels.elf file. (v0.15pre6)

http://srbase.my-firewall.org/sr5/fo...27&postid=6025

I have tried this on my 5500XT and its working, on the 5700XT not. Any ideas how to fix this?


Some more errors seen like this:
Loading binary kernel file mfakto_Kernels.elf

Cannot use binary kernel: its build options (-I. -DVECTOR_SIZE=2 -DGCN -O3 -DMORE_CLASSES -DCL_GPU_SIEVE) are different than the current build options (-I. -DVECTOR_SIZE=2 -DVLIW5 -O3 -DMORE_CLASSES -DCL_GPU_SIEVE). Rebuilding kernels.
Compiling kernels.
The official mfakto binary hasn't been updated in several years. Can you clone the repository and try to build from the code?
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Old 2020-05-05, 23:04   #1605
ixfd64
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Hey everyone, mfakto 0.15pre7 is now available on GitHub. Here are the changes:
  1. kracker has added preliminary support for newer architectures up to RDNA
  2. Some compiler warnings have been fixed
  3. mfakto should compile out of the box in Microsoft Visual Studio
  4. Of course, more documentation updates

Please note that I wasn't able to test the latest code on the Mac Pro at my office due to the COVID-19 pandemic. Feel free to slap me with a trout if I broke anything.

Last fiddled with by ixfd64 on 2020-05-05 at 23:05
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Old 2020-05-06, 00:37   #1606
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Quote:
Originally Posted by ixfd64 View Post
Hey everyone, mfakto 0.15pre7 is now available on GitHub. Here are the changes
Could you perchance provide a link?
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