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EMOpenCLinfo produces different result than calling opencl device query from c++ or python #119

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elena-pascal opened this issue Jul 3, 2020 · 1 comment
Open

EMOpenCLinfo produces different result than calling opencl device query from c++ or python #119

elena-pascal opened this issue Jul 3, 2020 · 1 comment

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@elena-pascal
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What I mean by the title is that EMOpenClinfo returns an error for clGetDeviceInfo that I don't get when calling the same command from C++. This is a recent development, I had a kernel upgrade, but it doesn't explain the different behaviour. Yes, I did wipe down all nvidia and opencl drivers and reinstalled fresh and installed fresh sdk and EMsoft. Did not help. Anyway, here is some data:

$ EMOpenCLinfo 


 Program name         : EMOpenCLinfo.f90
 Purpose              : List OpenCL platform and device information
 Platform             : Linux
 Source code version  : 5_0_20200702_0
 Source code Revision : abfbdde
 Build Date/Time      : 2020-07-02 23:15:57Z

 See https://github.com/EMsoft-org/EMsoft/wiki for selected help pages.

 Jul  2 2020   7:25:28.510 PM


Number of Platforms: 1
--------
Platform: 1

 Profile: FULL_PROFILE
 Version: OpenCL 1.2 CUDA 10.2.185
 Name: NVIDIA CUDA
 Vendor: NVIDIA Corporation
 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_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer cl_khr_int64_base_atomics cl_khr_int64_extended_atomics

  Non-fatal error: Error: CL_DEVICE_NOT_FOUND
 No CPU devices found on this platform


Num GPU Devices:  1


 ----> Fatal error in routine CLquery_platform_info:clGetDeviceInfo: Error: CL_INVALID_VALUE


STOP   Progam ended abnormally

$ clinfo

Number of platforms                               1
  Platform Name                                   NVIDIA CUDA
  Platform Vendor                                 NVIDIA Corporation
  Platform Version                                OpenCL 1.2 CUDA 10.2.185
  Platform Profile                                FULL_PROFILE
  Platform 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_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer cl_khr_int64_base_atomics cl_khr_int64_extended_atomics
  Platform Extensions function suffix             NV

  Platform Name                                   NVIDIA CUDA
Number of devices                                 1
  Device Name                                     GeForce GTX 1650
  Device Vendor                                   NVIDIA Corporation
  Device Vendor ID                                0x10de
  Device Version                                  OpenCL 1.2 CUDA
  Driver Version                                  440.100
Device OpenCL C Version                         OpenCL C 1.2 
  Device Type                                     GPU
  Device Topology (NV)                            PCI-E, 01:00.0
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Linker Available                                Yes
  Max compute units                               16
  Max clock frequency                             1560MHz
  Compute Capability (NV)                         7.5
  Device Partition                                (core)
    Max number of sub-devices                     1
    Supported partition types                     None
    Supported affinity domains                    (n/a)
  Max work item dimensions                        3
  Max work item sizes                             1024x1024x64
  Max work group size                             1024
  Preferred work group size multiple              32
  Warp size (NV)                                  32
  Preferred / native vector sizes                 
    char                                                 1 / 1       
    short                                                1 / 1       
    int                                                  1 / 1       
    long                                                 1 / 1       
    half                                                 0 / 0        (n/a)
    float                                                1 / 1       
    double                                               1 / 1        (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                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  Yes
  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                              4101898240 (3.82GiB)
  Error Correction support                        No
  Max memory allocation                           1025474560 (978MiB)
  Unified memory for Host and Device              No
  Integrated memory (NV)                          No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       4096 bits (512 bytes)
  Global Memory cache type                        Read/Write
  Global Memory cache size                        524288 (512KiB)
  Global Memory cache line size                   128 bytes
  Image support                                   Yes
    Max number of samplers per kernel             32
    Max size for 1D images from buffer            268435456 pixels
    Max 1D or 2D image array size                 2048 images
    Max 2D image size                             32768x32768 pixels
    Max 3D image size                             16384x16384x16384 pixels
    Max number of read image args                 256
    Max number of write image args                32
  Local memory type                               Local
  Local memory size                               49152 (48KiB)
  Registers per block (NV)                        65536
  Max number of constant args                     9
  Max constant buffer size                        65536 (64KiB)
  Max size of kernel argument                     4352 (4.25KiB)
  Queue properties                                
    Out-of-order execution                        Yes
    Profiling                                     Yes
  Prefer user sync for interop                    No
  Profiling timer resolution                      1000ns
  Execution capabilities                          
    Run OpenCL kernels                            Yes
    Run native kernels                            No
    Kernel execution timeout (NV)                 Yes
  Concurrent copy and kernel execution (NV)       Yes
    Number of async copy engines                  3
  printf() buffer size                            1048576 (1024KiB)
  Built-in kernels                                (n/a)
  Device 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_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer cl_khr_int64_base_atomics cl_khr_int64_extended_atomics

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  NVIDIA CUDA
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   Success [NV]
  clCreateContext(NULL, ...) [default]            Success [NV]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  No platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  No platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  Invalid device type for platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  No platform

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

I can query device from C++:

 ----------------------------------
 Device GeForce GTX 1650
 ---------------------------------
  CL_DEVICE_NAME: 			GeForce GTX 1650
  CL_DEVICE_VENDOR: 			NVIDIA Corporation
  CL_DRIVER_VERSION: 			440.100
  CL_DEVICE_TYPE:			CL_DEVICE_TYPE_GPU
  CL_DEVICE_MAX_COMPUTE_UNITS:		16
  CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS:	3
  CL_DEVICE_MAX_WORK_ITEM_SIZES:	1024 / 1024 / 64 
  CL_DEVICE_MAX_WORK_GROUP_SIZE:	1024
  CL_DEVICE_MAX_CLOCK_FREQUENCY:	1560 MHz
  CL_DEVICE_ADDRESS_BITS:		64
  CL_DEVICE_MAX_MEM_ALLOC_SIZE:		977 MByte
  CL_DEVICE_GLOBAL_MEM_SIZE:		3911 MByte
  CL_DEVICE_ERROR_CORRECTION_SUPPORT:	no
  CL_DEVICE_LOCAL_MEM_TYPE:		local
  CL_DEVICE_LOCAL_MEM_SIZE:		48 KByte
  CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE:	64 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:	256
  CL_DEVICE_MAX_WRITE_IMAGE_ARGS:	32

and with pyopencl:

============================================================
OpenCL Platforms and Devices
============================================================
Platform - Name:  NVIDIA CUDA
Platform - Vendor:  NVIDIA Corporation
Platform - Version:  OpenCL 1.2 CUDA 10.2.185
Platform - Profile:  FULL_PROFILE
    --------------------------------------------------------
    Device - Name:  GeForce GTX 1650
    Device - Type:  ALL | GPU
    Device - Max Clock Speed:  1560 Mhz
    Device - Compute Units:  16
    Device - Local Memory:  48 KB
    Device - Constant Memory:  64 KB
    Device - Global Memory: 4 GB
    Device - Max Buffer/Image Size: 978 MB
    Device - Max Work Group Size: 1024

I'm out of ideas. Is clfortran looking somewhere else for drivers?
@NINGYURICHARD
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Did you solve this problem? I just met the sam problem with you.

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@elena-pascal @NINGYURICHARD