Creating shared OpenGL context
by Stephen Newman
To whom it may concern,
I am finding myself unable to create a pyopencl context which can interface
with OpenGL. Upon running the following code:
from OpenGL import GLX
import OpenGL.GL as gl
import OpenGL
import pyopencl as cl
from pyopencl.tools import get_gl_sharing_context_properties
platform = cl.get_platforms()[0]
props=[(cl.context_properties.PLATFORM,
platform)]+get_gl_sharing_context_properties()
print (props)
ctx = cl.Context(properties=props)
I get the following:
[(4228, <pyopencl.Platform 'NVIDIA CUDA' at 0x55fecb4a14b0>), (8200,
<OpenGL.raw.GLX._types.LP_struct___GLXcontextRec object at
0x7f37dcee91e0>), (8202, <OpenGL.raw.GLX._types.LP_struct__XDisplay object
at 0x7f378907de18>)]
Traceback (most recent call last):
File "/home/myname/Desktop/myprogram/main.py", line 9, in <module>
ctx = cl.Context(properties=props)
RuntimeError: Unable to cast Python instance to C++ type (compile in debug
mode for details)
I also don't know how to compile in debug mode (apologies), so I'm
struggling to diagnose the problem. Any help or advice would be appreciated.
Thanks!
4 months, 3 weeks
- 2
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Import error on Windows 10, CUDA platform #287 Closed Nan2018 opened this issue 38 minutes ago · 4 comments
by Nan Qin
Python 3.7.3 | packaged by conda-forge | (default, Mar 27 2019,
23:18:50) [MSC v.1900 64 bit (AMD64)]
Type 'copyright', 'credits' or 'license' for more information
IPython 7.5.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import pyopencl
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-d21766556d09> in <module>
----> 1 import pyopencl
c:\users\nanqin\miniconda3\envs\opencl\lib\site-packages\pyopencl\__init__.py
in <module>
37
38 try:
---> 39 import pyopencl._cl as _cl
40 except ImportError:
41 import os
ImportError: DLL load failed: The specified procedure could not be found.
Pyopencl:
pyopencl 2018.2.5 py37h80bff14_0 conda-forge
System and opencl:
CL_PLATFORM_NAME : NVIDIA CUDA
CL_PLATFORM_VERSION : OpenCL 1.2 CUDA 10.2.120
CL_PLATFORM_VENDOR : NVIDIA Corporation
CL_PLATFORM_PROFILE : FULL_PROFILE
CL_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_d3d10_sharing
: cl_khr_d3d10_sharing
: cl_nv_d3d11_sharing
: cl_nv_copy_opts
: cl_nv_create_buffer
Device:
CL_DEVICE_NAME : GeForce GTX 1080 Ti
CL_DEVICE_TYPE : CL_DEVICE_TYPE_GPU
CL_DEVICE_VENDOR : NVIDIA Corporation
CL_DEVICE_VERSION : OpenCL 1.2 CUDA
CL_DEVICE_VENDOR_ID : 4318
CL_DRIVER_VERSION : 430.64
CL_DEVICE_MAX_SAMPLERS : 32
CL_DEVICE_MAX_WORK_GROUP_SIZE : 1024
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS : 3
CL_DEVICE_MAX_WORK_ITEM_SIZES : 1024, 1024, 64
CL_DEVICE_ADDRESS_BITS : 32
CL_DEVICE_LOCAL_MEM_TYPE : CL_LOCAL
CL_DEVICE_LOCAL_MEM_SIZE : 49152
CL_DEVICE_GLOBAL_MEM_CACHE_TYPE : CL_READ_WRITE_CACHE
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE : 458752
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE : 128
CL_DEVICE_GLOBAL_MEM_SIZE : 11811160064
CL_DEVICE_AVAILABLE : CL_TRUE
CL_DEVICE_COMPILER_AVAILABLE : CL_TRUE
CL_DEVICE_ENDIAN_LITTLE : CL_TRUE
CL_DEVICE_ERROR_CORRECTION_SUPPORT : CL_FALSE
CL_DEVICE_IMAGE_SUPPORT : CL_TRUE
CL_DEVICE_IMAGE2D_MAX_WIDTH : 16384
CL_DEVICE_IMAGE2D_MAX_HEIGHT : 32768
CL_DEVICE_IMAGE3D_MAX_WIDTH : 16384
CL_DEVICE_IMAGE3D_MAX_HEIGHT : 16384
CL_DEVICE_IMAGE3D_MAX_DEPTH : 16384
CL_DEVICE_PROFILING_TIMER_RESOLUTION : 1000
CL_DEVICE_MAX_CLOCK_FREQUENCY : 1582
CL_DEVICE_MAX_COMPUTE_UNITS : 28
CL_DEVICE_MAX_CONSTANT_ARGS : 9
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE : 65536
CL_DEVICE_MAX_MEM_ALLOC_SIZE : 2952790016
CL_DEVICE_MAX_PARAMETER_SIZE : 4352
CL_DEVICE_MAX_READ_IMAGE_ARGS : 256
CL_DEVICE_MAX_WRITE_IMAGE_ARGS : 16
CL_DEVICE_MEM_BASE_ADDR_ALIGN : 4096
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE : 128
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR : 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT : 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT : 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG : 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT : 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE : 1
CL_DEVICE_SINGLE_FP_CONFIG :
: CL_FP_DENORM
: CL_FP_INF_NAN
: CL_FP_ROUND_TO_NEAREST
: CL_FP_ROUND_TO_ZERO
: CL_FP_ROUND_TO_INF
: CL_FP_FMA
CL_DEVICE_DOUBLE_FP_CONFIG :
: CL_FP_DENORM
: CL_FP_INF_NAN
: CL_FP_ROUND_TO_NEAREST
: CL_FP_ROUND_TO_ZERO
: CL_FP_ROUND_TO_INF
: CL_FP_FMA
CL_DEVICE_HALF_FP_CONFIG :
: CL_FP_DENORM
: CL_FP_ROUND_TO_ZERO
: CL_FP_FMA
CL_DEVICE_EXECUTION_CAPABILITIES :
: CL_EXEC_KERNEL
CL_DEVICE_QUEUE_PROPERTIES
: CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE;CL_QUEUE_PROFILING_ENABLE
CL_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_d3d10_sharing
: cl_khr_d3d10_sharing
: cl_nv_d3d11_sharing
: cl_nv_copy_opts
: cl_nv_create_buffer
4 months, 4 weeks
- 2
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