Installation under Macbook Apple SiliconΒΆ
Macbook Air M1 (MacOS Ventura 13.5.2)
Apple provides a integrated GPU on its own apple silicon M1 processor. The M1 GPU supports OpenCL 1.2.
To identify the existing OpenCL driver, install clinfo from homebrew:
Install homebrew from terminal
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Install clinfo from terminal
brew install clinfo
Check the opencl driver
Number of platforms 1 Platform Name Apple Platform Vendor Apple Platform Version OpenCL 1.2 (Jun 23 2023 20:24:12) Platform Profile FULL_PROFILE Platform Extensions cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event Platform Name Apple Number of devices 1 Device Name Apple M1 Device Vendor Apple Device Vendor ID 0x1027f00 Device Version OpenCL 1.2 Driver Version 1.2 1.0 Device OpenCL C Version OpenCL C 1.2 Device Type GPU Device Profile FULL_PROFILE Device Available Yes Compiler Available Yes Linker Available Yes Max compute units 8 Max clock frequency 1000MHz Device Partition (core) Max number of sub-devices 0 Supported partition types None Supported affinity domains (n/a) Max work item dimensions 3 Max work item sizes 256x256x256 Max work group size 256 Preferred work group size multiple (kernel) 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 (n/a) Half-precision Floating-point support (n/a) Single-precision Floating-point support (core) Denormals No 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 (n/a) Address bits 64, Little-Endian Global memory size 11453251584 (10.67GiB) Error Correction support No Max memory allocation 2147483648 (2GiB) Unified memory for Host and Device Yes Minimum alignment for any data type 1 bytes Alignment of base address 32768 bits (4096 bytes) Global Memory cache type None 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 Base address alignment for 2D image buffers 256 bytes Pitch alignment for 2D image buffers 256 pixels Max 2D image size 16384x16384 pixels Max 3D image size 2048x2048x2048 pixels Max number of read image args 128 Max number of write image args 8 Local memory type Local Local memory size 32768 (32KiB) Max number of constant args 31 Max constant buffer size 1073741824 (1024MiB) Max size of kernel argument 4096 (4KiB) Queue properties Out-of-order execution No Profiling Yes Prefer user sync for interop Yes Profiling timer resolution 1000ns Execution capabilities Run OpenCL kernels Yes Run native kernels No printf() buffer size 1048576 (1024KiB) Built-in kernels (n/a) Device Extensions cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event cl_khr_byte_addressable_store 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_3d_image_writes cl_khr_image2d_from_buffer cl_khr_depth_images NULL platform behavior clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) Apple clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [P0] clCreateContext(NULL, ...) [default] Success [P0] clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) Success (1) Platform Name Apple Device Name Apple M1 clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1) Platform Name Apple Device Name Apple M1 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) Success (1) Platform Name Apple Device Name Apple M1
Run pynufft tests
Python 3.11.5 (main, Aug 24 2023, 15:09:45) [Clang 14.0.3 (clang-1403.0.22.14.1)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> from pynufft import tests as t >>> t.test_init() No cuda device found. Check your pycuda installation. device name = <pyopencl.Device 'Apple M1' on 'Apple' at 0x1027f00> 0.024686098098754883 0.0167756986618042 error gx2= 2.1132891e-07 error gy= 1.1100628500806993e-07 acceleration= 1.4715391946662406 7.563086748123169 4.348098039627075 acceleration in solver= 1.7394011540668561
