[Beignet] johntheripper/OpenCL clGetEventProfilingInfo issue

[Oleksii Shevchuk]

Hi list!

I'm trying to use beignet (67650189c145a65addffdcd4d8ff452709bd4149)
with johntheripper (ceb8aa1899817965afd26ffb651932e475a7bbc7 at
https://github.com/magnumripper/JohnTheRipper) on i7/HD4000.
Test suite reports that tests are passed:

.....

compiler_abs_diff_int()Instruction (#42) src too large pooloffset 11
Instruction (#20) src too large pooloffset 11
    [SUCCESS]

.....


    [SUCCESS]
double_precision_check()
  - WARN: GPU doesn't have correct double precision. Got 9.995699E-05, expected 0.0001000001

summary:
----------
  total: 421
  run: 421
  pass: 419
  fail: 0
  pass rate: 1.000000

But with john I ran into the next problem:

 john -format=rar-opencl -te
Will run 4 OpenMP threads
Device 0: Intel(R) HD Graphics IvyBridge M GT2
OpenCL error (CL_PROFILING_INFO_NOT_AVAILABLE) in file (common-opencl.c) at line (1210) - (Failed in clGetEventProfilingInfo I)

Here is this place:
https://github.com/magnumripper/JohnTheRipper/blob/bleeding-jumbo/src/common-opencl.c#L1205

According to the cl_api.c, in the clGetEventProfilingInfo, status is not
equals to CL_COMPLETE, and all other conditions were ok.

I add this to cl_api.c / clGetEventProfilingInfo
    fprintf(stderr, "ER: %d? %d? %d?\n",.
      event->type == CL_COMMAND_USER, !(event->queue->props & CL_QUEUE_PROFILING_ENABLE),.
      event->status != CL_COMPLETE);

And result was:
LD_PRELOAD=/home/avatar/Software/beignet-build/src/libcl.so ../run/john -format=encfs-opencl -te          
Will run 4 OpenMP threads                                                                             
Device 0: Intel(R) HD Graphics IvyBridge M GT2
ER: 0? 0? 1?
OpenCL error (CL_PROFILING_INFO_NOT_AVAILABLE) in file (common-opencl.c) at line (1211) - (Failed in clGetEventProfilingInfo I)

According to the documentation, before requesting
clGetEventProfilingInfo, the queue should be created with
CL_QUEUE_PROFILING_ENABLE. So I add clFinish after all queues creation
with this flag. Result was the same.

So, the question is, are there problems in the beignet implementation,
or in their code?

Thanks.

// wbr
// alxchk