Segmentation fault (core dumped)

[boohann]

Hi,

I'm running the test scripts now but they all seem to be giving me a Segmentation fault (core dumped) error. I went through make and cmake fully with all the necessary libraries being installed but when I run ctest i get the error:

1: Test timeout computed to be: 10000000
1/1 Test #1: tests_python .....................***Exception: SegFault  0.66 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) =   0.66 sec

The following tests FAILED:
      1 - tests_python (SEGFAULT)
Errors while running CTest

I'm on an AMD R9 290 GPU and a Intel® Xeon(R) CPU E5-2650, do you think this hardware could be causing the issue? OpenCL does seem to be working correctly.

Many thanks for you time, Niall

[avramidis]

Hello,

I do not think hardware issue is the problem. Could you run "python3 kuramoto_euler.py" in the examples. Also, do a clinfo to see you OpenCL platforms. You might need to change that in the example python script. It's the openclplatform variable.

Let me know if that helps. If it does I will have to fix the tests.

[boohann]

Hi,

I tried the the changing openclplatform from 0->1 but it didn't make a difference. I just have openCL installed for my CPU and I checked it with a different script in C++ and that does look to be working. I'm at a loss as to what the problem is.

Thank you for your time, Niall

[avramidis]

Hmm, could you paste the clinfo output here?

[boohann]

Sure no problem

`Number of platforms 1 Platform Name Intel(R) OpenCL Platform Vendor Intel(R) Corporation Platform Version OpenCL 1.2 LINUX Platform Profile FULL_PROFILE Platform Extensions cl_khr_icd 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_depth_images cl_khr_3d_image_writes cl_intel_exec_by_local_thread cl_khr_spir cl_khr_fp64 Platform Extensions function suffix INTEL

Platform Name Intel(R) OpenCL Number of devices 1 Device Name Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz Device Vendor Intel(R) Corporation Device Vendor ID 0x8086 Device Version OpenCL 1.2 (Build 25) Driver Version 1.2.0.25 Device OpenCL C Version OpenCL C 1.2 Device Type CPU Device Profile FULL_PROFILE Device Available Yes Compiler Available Yes Linker Available Yes Max compute units 16 Max clock frequency 2000MHz Device Partition (core) Max number of sub-devices 16 Supported partition types by counts, equally, by names (Intel) Max work item dimensions 3 Max work item sizes 8192x8192x8192 Max work group size 8192 Preferred work group size multiple 128 Preferred / native vector sizes
char 1 / 16
short 1 / 8
int 1 / 4
long 1 / 2
half 0 / 0 (n/a) float 1 / 8
double 1 / 4 (cl_khr_fp64) Half-precision Floating-point support (n/a) Single-precision Floating-point support (core) Denormals Yes Infinity and NANs Yes Round to nearest Yes Round to zero No Round to infinity No IEEE754-2008 fused multiply-add No Support is emulated in software No Correctly-rounded divide and sqrt operations No Double-precision Floating-point support (cl_khr_fp64) Denormals Yes Infinity and NANs Yes Round to nearest Yes Round to zero Yes Round to infinity Yes IEEE754-2008 fused multiply-add Yes Support is emulated in software No Address bits 64, Little-Endian Global memory size 16701521920 (15.55GiB) Error Correction support No Max memory allocation 4175380480 (3.889GiB) Unified memory for Host and Device Yes Minimum alignment for any data type 128 bytes Alignment of base address 1024 bits (128 bytes) Global Memory cache type Read/Write Global Memory cache size 262144 (256KiB) Global Memory cache line size 64 bytes Image support Yes Max number of samplers per kernel 480 Max size for 1D images from buffer 260961280 pixels Max 1D or 2D image array size 2048 images Max 2D image size 16384x16384 pixels Max 3D image size 2048x2048x2048 pixels Max number of read image args 480 Max number of write image args 480 Local memory type Global Local memory size 32768 (32KiB) Max number of constant args 480 Max constant buffer size 131072 (128KiB) Max size of kernel argument 3840 (3.75KiB) Queue properties
Out-of-order execution Yes Profiling Yes Local thread execution (Intel) Yes Prefer user sync for interop No Profiling timer resolution 1ns Execution capabilities
Run OpenCL kernels Yes Run native kernels Yes SPIR versions 1.2 printf() buffer size 1048576 (1024KiB) Built-in kernels
Device Extensions cl_khr_icd 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_depth_images cl_khr_3d_image_writes cl_intel_exec_by_local_thread cl_khr_spir cl_khr_fp64

NULL platform behavior clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) Intel(R) OpenCL clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [INTEL] clCreateContext(NULL, ...) [default] Success [INTEL] clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) Success (1) Platform Name Intel(R) OpenCL Device Name Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) Success (1) Platform Name Intel(R) OpenCL Device Name Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) Success (1) Platform Name Intel(R) OpenCL Device Name Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz

ICD loader properties ICD loader Name OpenCL ICD Loader ICD loader Vendor OCL Icd free software ICD loader Version 2.2.11 ICD loader Profile OpenCL 2.1`

For now I just have the Intel drivers installed for the CPU and not the ROCm ones for the GPU.

Many thanks, Niall

[avramidis]

Did you install the runtime from here https://software.intel.com/content/www/us/en/develop/articles/opencl-drivers.html