Comments (8)
GoogleCodeExporter
commented on July 18, 2024
Kenneth
That is weird.
Can you turn on enableVerboseJNI
(-Dcom.amd.aparapi.enableVerboseJNI=true) and scan the output. This
should cause a roll-call of the available platforms and devices.
Also AMD APP SDK install includes a program called clinfo which will
list the available devices. Can you confirm that this program is
seeing your device?
It almost looks like OpenCL is not installed.
Original comment by [email protected] on 11 Nov 2011 at 4:10
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
Sorry I just reread this issue. Clearly you had already tried verboseJNI.
.. and OpenCL is installed or verboseJNI would not report the way it does.
Can you email/post the result of running clinfo?
Original comment by [email protected] on 11 Nov 2011 at 4:30
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
The JOCL binding works, so I am pretty sure OpenCL is installed.
The output from clinfo:
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Platform Name: AMD Accelerated Parallel Processing
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd cl_amd_event_callback cl_amd_offline_devices
Platform Name: AMD Accelerated Parallel Processing
Number of devices: 1
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Max compute units: 6
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: 800Mhz
Address bits: 64
Max memory allocation: 4215327744
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: No
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 16861310976
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: 1
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: 0x7ff4219a8060
Name: AMD Phenom(tm) II X6 1090T Processor
Vendor: AuthenticAMD
Device OpenCL C version: OpenCL C 1.1
Driver version: 2.0
Profile: FULL_PROFILE
Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_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_ext_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_media_ops cl_amd_popcnt cl_amd_printf
Original comment by [email protected] on 14 Nov 2011 at 10:44
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
Looks like OpenCL is not detecting your GPU device. It is detecting your 6 core
CPU only (# of devices is 1)
I have the same CPU as you as well as a 5770 based GPU. My clinfo output is
shown below.
The default driver for your graphics card may not support OpenCL.
Start here http://support.amd.com/us/gpudownload/Pages/index.aspx but note that
that you may have the option of installing OpenCL as an 'optional individual
driver'.
For example on this page
http://sites.amd.com/us/game/downloads/Pages/radeon_win7-32.aspx the
'individual driver' tab reveals an OpenCL driver.
I can't explain JOCL working, unless JOCL is defaulting to use your GPU device
(did you select GPU or ANY when you queried for suitable devices in your JOCL
code?).
Here is my clinfo output.
Number of platforms: 1
Platform Profile: FULL_PROFILE
Platform Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Platform Name: AMD Accelerated Parallel Processing
Platform Vendor: Advanced Micro Devices, Inc.
Platform Extensions: cl_khr_icd cl_amd_event_callback cl_amd_offline_devices cl_khr_d3d10_sharing
Platform Name: AMD Accelerated Parallel Processing
Number of devices: 2
Device Type: CL_DEVICE_TYPE_GPU
Device ID: 4098
Max compute units: 10
Max work items dimensions: 3
Max work items[0]: 256
Max work items[1]: 256
Max work items[2]: 256
Max work group size: 256
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: 950Mhz
Address bits: 32
Max memory allocation: 209715200
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: 1024
Alignment (bits) of base address: 32768
Minimum alignment (bytes) for any datatype: 128
Single precision floating point capability
Denorms: No
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: None
Cache line size: 0
Cache size: 0
Global memory size: 838860800
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Scratchpad
Local memory size: 32768
Kernel Preferred work group size multiple: 64
Error correction support: 0
Unified memory for Host and Device: 0
Profiling timer resolution: 1
Device endianess: Little
Available: Yes
Compiler available: Yes
Execution capabilities:
Execute OpenCL kernels: Yes
Execute native function: No
Queue properties:
Out-of-Order: No
Profiling : Yes
Platform ID: 5C3141B4
Name: Juniper
Vendor: Advanced Micro Devices, Inc.
Device OpenCL C version: OpenCL C 1.1
Driver version: CAL 1.4.1457 (VM)
Profile: FULL_PROFILE
Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Extensions: cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32 cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_popcnt cl_khr_d3d10_sharing
Device Type: CL_DEVICE_TYPE_CPU
Device ID: 4098
Max compute units: 6
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: 3200Mhz
Address bits: 32
Max memory allocation: 1073741824
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: No
Cache type: Read/Write
Cache line size: 64
Cache size: 65536
Global memory size: 2147483648
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: 69
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: 5C3141B4
Name: AMD Phenom(tm) II X6 1090T Processor
Vendor: AuthenticAMD
Device OpenCL C version: OpenCL C 1.1
Driver version: 2.0
Profile: FULL_PROFILE
Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_media_ops cl_amd_popcnt cl_amd_printf cl_khr_d3d10_sharing
Original comment by [email protected] on 14 Nov 2011 at 4:25
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
The JOCL code I used had a small bug that caused it to select the CPU if there
were no GPU present. After fixing that, it reports "No GPU" just like Aparapi.
I will see if I can install new drivers.
Feel free to close this issue, as it is likely a machine config issue, not a
Aparapi specific issue.
Original comment by [email protected] on 15 Nov 2011 at 12:07
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
I can add that the problem was that "X-Forwarding" was enabled for my SSH
connection. Disabling XForwarding made CLInfo and Aparapi detect the cards.
Original comment by [email protected] on 15 Nov 2011 at 12:51
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
Nice find. I would never have thought of that. Glad you got it working.
BTW how did you diagnose this?
I will close this issue.
Original comment by [email protected] on 15 Nov 2011 at 3:15
- Changed state: Invalid
from aparapi.
GoogleCodeExporter
commented on July 18, 2024
I asked the machine maintainer if I could upgrade the driver, and he said it
works fine but that XForwarding messes up OpenCL. I have no idea how he found
out though :)
Original comment by [email protected] on 15 Nov 2011 at 3:25
from aparapi.
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