I have a new HD7970, and after awhile the GPU device disappears from the OpenCL device list. Here's what clinfo says when that happens:
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.2 AMD-APP (923.1)
Platform Name: AMD Accelerated Parallel Proces
sing
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd cl_amd_event_callbac
k cl_amd_offline_devices cl_khr_d3d10_sharing
Platform Name: AMD Accelerated Parallel Proces
sing
Number of devices: 1
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Board name:
Max compute units: 4
Max work items dimensions: 3
Max work items[0]: 1024
Max work items[1]: 1024
Max work items[2]: 1024
Max work group size: 1024
Preferred vector width char: 16
Preferred vector width short: 8
Preferred vector width int: 4
Preferred vector width long: 2
Preferred vector width float: 4
Preferred vector width double: 0
Native vector width char: 16
Native vector width short: 8
Native vector width int: 4
Native vector width long: 2
Native vector width float: 4
Native vector width double: 0
Max clock frequency: 3010Mhz
Address bits: 64
Max memory allocation: 2147483648
Image support: Yes
Max number of images read arguments: 128
Max number of images write arguments: 8
Max image 2D width: 8192
Max image 2D height: 8192
Max image 3D width: 2048
Max image 3D height: 2048
Max image 3D depth: 2048
Max samplers within kernel: 16
Max size of kernel argument: 4096
Alignment (bits) of base address: 1024
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: Yes
Quiet NaNs: Yes
Round to nearest even: Yes
Round to zero: Yes
Round to +ve and infinity: Yes
IEEE754-2008 fused multiply-add: Yes
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 8581414912
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 32768
Kernel Preferred work group size multiple: 1
Error correction support: 0
Unified memory for Host and Device: 1
Profiling timer resolution: 340
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: Yes
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 000007FED9012A08
Name: AMD Phenom(tm) II X4 940 Proces
sor
Vendor: AuthenticAMD
Device OpenCL C version: OpenCL C 1.2
Driver version: 2.0 (sse2)
Profile: FULL_PROFILE
Version: OpenCL 1.2 AMD-APP (923.1)
Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_
global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int3
2_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_
khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ex
t_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_
media_ops cl_amd_popcnt cl_khr_d3d10_sharing
It doesn't do this upon a fresh reboot. It's only after some amount of time that at some point, the GPU is just gone.
Also (maybe related?) the machine now sometimes doesn't let me wake it back up after it has turned off the monitors. I have found that with the new Radeon drivers for the new card that I have to disable the "turn off monitors" in the Power settings for the computer to keep working when I leave it alone for a few hours.
Any idea what's going on?
--Keith Brafford
Solved! Go to Solution.
kbrafford wrote:
I have a new HD7970, and after awhile the GPU device disappears from the OpenCL device list. Here's what clinfo says when that happens:
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.2 AMD-APP (923.1)
Platform Name: AMD Accelerated Parallel Proces
sing
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd cl_amd_event_callbac
k cl_amd_offline_devices cl_khr_d3d10_sharing
Platform Name: AMD Accelerated Parallel Proces
sing
Number of devices: 1
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Board name:
Max compute units: 4
Max work items dimensions: 3
Max work items[0]: 1024
Max work items[1]: 1024
Max work items[2]: 1024
Max work group size: 1024
Preferred vector width char: 16
Preferred vector width short: 8
Preferred vector width int: 4
Preferred vector width long: 2
Preferred vector width float: 4
Preferred vector width double: 0
Native vector width char: 16
Native vector width short: 8
Native vector width int: 4
Native vector width long: 2
Native vector width float: 4
Native vector width double: 0
Max clock frequency: 3010Mhz
Address bits: 64
Max memory allocation: 2147483648
Image support: Yes
Max number of images read arguments: 128
Max number of images write arguments: 8
Max image 2D width: 8192
Max image 2D height: 8192
Max image 3D width: 2048
Max image 3D height: 2048
Max image 3D depth: 2048
Max samplers within kernel: 16
Max size of kernel argument: 4096
Alignment (bits) of base address: 1024
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: Yes
Quiet NaNs: Yes
Round to nearest even: Yes
Round to zero: Yes
Round to +ve and infinity: Yes
IEEE754-2008 fused multiply-add: Yes
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 8581414912
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 32768
Kernel Preferred work group size multiple: 1
Error correction support: 0
Unified memory for Host and Device: 1
Profiling timer resolution: 340
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: Yes
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 000007FED9012A08
Name: AMD Phenom(tm) II X4 940 Proces
sor
Vendor: AuthenticAMD
Device OpenCL C version: OpenCL C 1.2
Driver version: 2.0 (sse2)
Profile: FULL_PROFILE
Version: OpenCL 1.2 AMD-APP (923.1)
Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_
global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int3
2_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_
khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ex
t_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_
media_ops cl_amd_popcnt cl_khr_d3d10_sharing
It doesn't do this upon a fresh reboot. It's only after some amount of time that at some point, the GPU is just gone.
Also (maybe related?) the machine now sometimes doesn't let me wake it back up after it has turned off the monitors. I have found that with the new Radeon drivers for the new card that I have to disable the "turn off monitors" in the Power settings for the computer to keep working when I leave it alone for a few hours.
Any idea what's going on?
--Keith Brafford
I think it works Technology AMD Zero Core, breaking graphics card when idle
I have similar problem with two HD 7970.
Normally clinfo shows only CPU and one of the cards.
When I issue:
export COMPUTE=:0
it shows all three OpenCL devices - CPU and both GPUs.
pbcpbt wrote:
I have similar problem with two HD 7970.
Normally clinfo shows only CPU and one of the cards.
When I issue:
export COMPUTE=:0
it shows all three OpenCL devices - CPU and both GPUs.
Add the "export COMPUTE =: 0" in the file / etc / environment and all of OpenCL devices will be continuously visible in the system (only in my HD7970 connected to a monitor, a second HD6950 ... )
What's the windows syntax for that setting?
kbrafford wrote:
What's the windows syntax for that setting?
I have a basic HD7970 (connected to a monitor), and 6950 second (that does not support AMD Zero Core, it can not completely shut down), I do not have a problem in windows, and only needed for Linux to set variables to initialize a second video card ...
It is interesting to ask in AMD, as the 7000-series output from the disconnected state if it is not connected to the monitor?
kbrafford wrote:
I have a new HD7970, and after awhile the GPU device disappears from the OpenCL device list. Here's what clinfo says when that happens:
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.2 AMD-APP (923.1)
Platform Name: AMD Accelerated Parallel Proces
sing
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd cl_amd_event_callbac
k cl_amd_offline_devices cl_khr_d3d10_sharing
Platform Name: AMD Accelerated Parallel Proces
sing
Number of devices: 1
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Board name:
Max compute units: 4
Max work items dimensions: 3
Max work items[0]: 1024
Max work items[1]: 1024
Max work items[2]: 1024
Max work group size: 1024
Preferred vector width char: 16
Preferred vector width short: 8
Preferred vector width int: 4
Preferred vector width long: 2
Preferred vector width float: 4
Preferred vector width double: 0
Native vector width char: 16
Native vector width short: 8
Native vector width int: 4
Native vector width long: 2
Native vector width float: 4
Native vector width double: 0
Max clock frequency: 3010Mhz
Address bits: 64
Max memory allocation: 2147483648
Image support: Yes
Max number of images read arguments: 128
Max number of images write arguments: 8
Max image 2D width: 8192
Max image 2D height: 8192
Max image 3D width: 2048
Max image 3D height: 2048
Max image 3D depth: 2048
Max samplers within kernel: 16
Max size of kernel argument: 4096
Alignment (bits) of base address: 1024
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: Yes
Quiet NaNs: Yes
Round to nearest even: Yes
Round to zero: Yes
Round to +ve and infinity: Yes
IEEE754-2008 fused multiply-add: Yes
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 8581414912
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Global
Local memory size: 32768
Kernel Preferred work group size multiple: 1
Error correction support: 0
Unified memory for Host and Device: 1
Profiling timer resolution: 340
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: Yes
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 000007FED9012A08
Name: AMD Phenom(tm) II X4 940 Proces
sor
Vendor: AuthenticAMD
Device OpenCL C version: OpenCL C 1.2
Driver version: 2.0 (sse2)
Profile: FULL_PROFILE
Version: OpenCL 1.2 AMD-APP (923.1)
Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_
global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int3
2_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_
khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ex
t_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_
media_ops cl_amd_popcnt cl_khr_d3d10_sharing
It doesn't do this upon a fresh reboot. It's only after some amount of time that at some point, the GPU is just gone.
Also (maybe related?) the machine now sometimes doesn't let me wake it back up after it has turned off the monitors. I have found that with the new Radeon drivers for the new card that I have to disable the "turn off monitors" in the Power settings for the computer to keep working when I leave it alone for a few hours.
Any idea what's going on?
--Keith Brafford
I think it works Technology AMD Zero Core, breaking graphics card when idle
Ok, I rebooted again, and now I have no GPU context at all, even from the beginning of a session.
What gives? How do I fix my setup?
--Keith Brafford
Same problem again with two HD 7970.
clinfo shows only CPU and one of the cards.
When I issue:
export COMPUTE=:0
NOTHING CHANGES!
file etc/environment has that line as well...
This time it's Ubuntu 12.04