mersenneforum.org - View Single Post - mfaktc 0.21

keisentraut · 2020-08-17, 12:46

I want to compile and run mfaktc 0.21 on my Arch Linux laptop. This has worked well until a few months ago, but now it doesn't, likely because of some upgrade which I didn't pay attention to....
I have a GeForce GTX 950M. It is only capable of doing around 130GHz days per day of factoring. Compute Capability is 5.0, the card is supported by CUDA toolkit 6.0-11.0. I have installed cuda package 11.0 from the Arch Linux official repository. I uncommented this line in the Makefile.

Code:

 NVCCFLAGS += --generate-code arch=compute_50,code=sm_50 # CC 5.x GPUs will use this code

All of this has worked flawlessly until a few months ago, but now I get the following error message when I run mfaktc:

Code:

CUDA version info   binary compiled for CUDA  11.0
  CUDA runtime version      32.66
  CUDA driver version       11.0
ERROR: CUDA runtime version must match the CUDA toolkit version used during compile!

Why the heck is the CUDA runtime version 32.66? Version 32 does not even exist, does it?

2020-08-17, 12:46	#1
keisentraut Jul 2020 2²×3 Posts	mfaktc 0.21 - CUDA runtime wrong I want to compile and run mfaktc 0.21 on my Arch Linux laptop. This has worked well until a few months ago, but now it doesn't, likely because of some upgrade which I didn't pay attention to.... I have a GeForce GTX 950M. It is only capable of doing around 130GHz days per day of factoring. Compute Capability is 5.0, the card is supported by CUDA toolkit 6.0-11.0. I have installed cuda package 11.0 from the Arch Linux official repository. I uncommented this line in the Makefile. Code: NVCCFLAGS += --generate-code arch=compute_50,code=sm_50 # CC 5.x GPUs will use this code All of this has worked flawlessly until a few months ago, but now I get the following error message when I run mfaktc: Code: CUDA version info binary compiled for CUDA 11.0 CUDA runtime version 32.66 CUDA driver version 11.0 ERROR: CUDA runtime version must match the CUDA toolkit version used during compile! Why the heck is the CUDA runtime version 32.66? Version 32 does not even exist, does it?