I've installed the Intel SDK on my Ubuntu VM, and the install seems to have worked fine. I can run the program here:
https://gist.github.com/rmcgibbo/6314452/download#
Which results in this info. As near as I can tell, it's all right. (Dunno if preferred vector widths are supposed to be 1, though.)
$ ./clDeviceQuery
clDeviceQuery Starting...
1 OpenCL Platforms found
CL_PLATFORM_NAME: Intel(R) OpenCL
CL_PLATFORM_VERSION: OpenCL 1.2 LINUX
OpenCL Device Info:
1 devices found supporting OpenCL on: Intel(R) OpenCL
----------------------------------
Device Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
---------------------------------
CL_DEVICE_NAME: Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
CL_DEVICE_VENDOR: Intel(R) Corporation
CL_DRIVER_VERSION: 1.2.0.8
CL_DEVICE_TYPE: CL_DEVICE_TYPE_CPU
CL_DEVICE_MAX_COMPUTE_UNITS: 2
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS: 3
CL_DEVICE_MAX_WORK_ITEM_SIZES: 8192 / 8192 / 8192
CL_DEVICE_MAX_WORK_GROUP_SIZE: 8192
CL_DEVICE_MAX_CLOCK_FREQUENCY: 2300 MHz
CL_DEVICE_ADDRESS_BITS: 64
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 626 MByte
CL_DEVICE_GLOBAL_MEM_SIZE: 2507 MByte
CL_DEVICE_ERROR_CORRECTION_SUPPORT: no
CL_DEVICE_LOCAL_MEM_TYPE: global
CL_DEVICE_LOCAL_MEM_SIZE: 32 KByte
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE: 128 KByte
CL_DEVICE_QUEUE_PROPERTIES: CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE
CL_DEVICE_QUEUE_PROPERTIES: CL_QUEUE_PROFILING_ENABLE
CL_DEVICE_IMAGE_SUPPORT: 1
CL_DEVICE_MAX_READ_IMAGE_ARGS: 480
CL_DEVICE_MAX_WRITE_IMAGE_ARGS: 480
CL_DEVICE_IMAGE <dim> 2D_MAX_WIDTH 16384
2D_MAX_HEIGHT 16384
3D_MAX_WIDTH 2048
3D_MAX_HEIGHT 2048
3D_MAX_DEPTH 2048
CL_DEVICE_PREFERRED_VECTOR_WIDTH_<t> CHAR 1, SHORT 1, INT 1, FLOAT 1, DOUBLE 1
clDeviceQuery, Platform Name = Intel(R) OpenCL, Platform Version = OpenCL 1.2 LINUX, NumDevs = 1, Device = Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
System Info:
Local Time/Date = 19:13:19, 10/24/2014
CPU Name: Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
# of CPU processors: 2
Linux version 3.2.0-23-generic (buildd@crested) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu4) ) #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012
TEST PASSED
However, I can't get further than CL_DEVICE_NOT_AVAILABLE when I call clCreateContext(). If I run the test program on this page:
http://wiki.tiker.net/OpenCLHowTo
The output looks like this:
$ ./cl-demo 1000000 10
Choose platform:
[0] Intel(R) Corporation
Enter choice:
Choose device:
[0] Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
Enter choice:
*** 'clCreateContext' in 'cl-helper.c' on line 342 failed with error 'device not available'.
Aborted
Any ideas on what I'm doing wrong? As near as I can tell, the processor *should* be supported.