[Linux][Optimus] Gamma-ray pulsar binary search #1 on GPUs : Error 209

Kret_polny
Kret_polny
Joined: 16 Feb 08
Posts: 2
Credit: 133011049
RAC: 2073
Topic 204104

As this is my first message here I'd like to say: Hello!

I have some issues running E@H projects on GPU.

My set-up is a laptop "hyperbook N55" ( Clevo N550RC):

Intel® Core™ i7-6700HQ

NVIDIA® GeForce GTX 950M + Intel® HD Graphics 530

16GB RAM

OpenSuSE Leap 42.2 + Bumblebee

 

I've tried to run BOINC Client with optirun using several different settings:

optirun <boincclient command>

optirun --no-xorg <boincclient command>

optirun --no-xorg sudo <boincclient command>

optirun -b primusrun <boincclient command>

but each time I run Gamma-ray pulsar binary search #1 GPU WU I'm getting following error:

 

boinc_get_opencl_ids returned [0x1465fc0 , 0x1465f10]

Using OpenCL platform provided by: NVIDIA Corporation

Using OpenCL device "GeForce GTX 950M" by: NVIDIA Corporation

Max allocation limit: 524910592

Global mem size: 2099642368

Couldn't create OpenCL context (error: 209)!

initialize_ocl returned error [2007] OCL context null OCL queue null

 

I've tried to search Internet for the meaning of error 209 but I couldn't find anything useful, Does anyone encountered this type of error and maybe has a solution?

 

and btw. I've got a Gamma-ray pulsar binary search #1GPU WU that says in details tab "Virtual memory size: 28.21GB" - that type of WU is normally generated?

 

Holmis
Joined: 4 Jan 05
Posts: 1118
Credit: 1055935564
RAC: 0

Hello and welcome to the

Hello and welcome to the message boards!

Quote:
Max allocation limit: 524910592


That's ~500 MB and the "Gamma-ray pulsar binary search #1 on GPUs" requires 1 GB of GPU RAM with the present version (1.17), sometime in the (hopefully) near future a version with lowered requirements should be released and it will probably require ~768 MB GPU RAM. See if you could allocate some more memory to your GPU in your BIOS/UEFI.

Kret_polny
Kret_polny
Joined: 16 Feb 08
Posts: 2
Credit: 133011049
RAC: 2073

Thanks for feedback! It

Thanks for feedback!

It seems that my system wasn't fully configured for running OpenCL: after reading output of strace I found that apps can't find some shared libraries. In my case they were located in /usr/src/NVIDIA-Linux-x86_64-375.26/ . After I added it to LD_LIBRARY_PATH E@H GPU WU seems to run ok. Fortunately there is no need to change max allocation limit for now.

 

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