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[scrape]

Hello,

My Radeon 7970 has 3gb of memory.  The global memory size only shows 3gb when I query the device.  I have set the environment variable GPU_MAX_HEAP_SIZE to 100.    The OS I am running is 32-bit debian sid.  I have several other cards which all show the correct memory when that environment variable is set to 100.

Thanks,

  Scrape

[binying]

what is the command u used to query the device?

Using "clinfo", can you get the correct info about the card?

[scrape]

clinfo gives me more memory than I thought was on the card:

Global memory size:   375809638

When I call clGetDeviceInfo for the property CL_DEVICE_GLOBAL_MEM_SIZE I get: 2147483648

per yurteson's suggestion once I set GPU_MAX_ALLOC_PERCENT=100 in the environment, clGetDeviceInfo gives me:  3102736384

I am now more confused than before

[nou]

from release notes AMD APP SDK

On Linux for non-Southern_Islands platforms, the OpenCL runtime currently exposes less than the total amount of memory

physically available on the card. In Windows and on Linux or Southern-Islands-based platforms, the OpenCL runtime reports the total amount of physical memory for boards with up to 2 GB.

[yurtesen · Accepted solution]

Did you try the undocumented/unsupported:

GPU_MAX_ALLOC_PERCENT=100

[scrape]

That worked, thanks,  really weird stuff.