jdanecki / fractalcl

Discover and explore fractals world with OpenCL acceleration

My projects

Music

• punk
• rock
• metal
• various

Projects on github I'm working on

• KaNaPi64 - Linux distribution for x86_64 architecture

Previous github projects

• KaNaPi - Linux distribution for x86/x86_64/arm architectures
• FractalCL - Fractals with OpenCL acceleration
• Intel(R) Graphics Compute Runtime for OpenCL(TM)
• Testing fork of Intel(R) Graphics Compute Runtime for OpenCL(TM)

Links

• blog about punk/new-age C-60

fractalcl's Issues

fails when both GPU and CPU platforms exist

I have amd-opencl-icd installed from jessie-backports non-free section on my Debian Buster system so I can test OpenCL on my CPU (less risk of crashing with exceeded timeouts, etc). I also have the Mesa OpenCL driver for my GPU. The program aborts on startup, presumably because it wants a GPU from the second platform (which is CPU). There should ideally be a dialog to select the platform and device, and not absolutely require GPU because OpenCL can run fine on CPU too, though perhaps less fast. Here's the output from the program:

found 2 platforms
--- platform: Clover
GPU device: Radeon RX 580 Series (POLARIS10 / DRM 3.23.0 / 4.16.0-2-amd64, LLVM 6.0.0)
MAX_COMPUTE_UNITS=36
MAX_WORKGROUP_SIZE=256
--- platform: AMD Accelerated Parallel Processing
OCL GPU device not found err=-1

And here are the first few lines from clinfo:

Number of platforms                               2
  Platform Name                                   Clover
  Platform Vendor                                 Mesa
  Platform Version                                OpenCL 1.1 Mesa 18.0.5
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
  Platform Extensions function suffix             MESA

  Platform Name                                   AMD Accelerated Parallel Processing
  Platform Vendor                                 Advanced Micro Devices, Inc.
  Platform Version                                OpenCL 2.0 AMD-APP (1912.5)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd cl_amd_event_callback cl_amd_offline_devices 
  Platform Extensions function suffix             AMD