Skip to content

Latest commit

 

History

History
155 lines (144 loc) · 4.82 KB

README.md

File metadata and controls

155 lines (144 loc) · 4.82 KB
Raw

Getting Started

DPC++

Git hash used in performance results below: https://github.com/intel/llvm/commit/d81081f70085de828d2ff8acdd3e62621af5d00c

A more recent Git hash that works: https://github.com/intel/llvm/commit/cece649de57dbd5dc7052d6e45ca3bd47fd0913b

Run build.sh in this directory to obtain the DPC++ compiler for the CUDA back-end.

You need CMake 3.14+ and Ninja (ninja-build) to compile LLVM (i.e. DPC++). Please install these yourself.

Results

Block size CUDA Rate (MF/s) SYCL Rate (MF/s) CUDA Avg time (s) SYCL Avg time (s)
1 23745.6 46322.8 0.0941447 0.0482597
2 94231.9 165960 0.0237236 0.0134702
4 347783 486228 0.00642793 0.00459768
8 425630 1.00311e+06 0.00525227 0.0022286
16 245849 1.0703e+06 0.00909305 0.00208868
32 223730 1.06991e+06 0.00999204 0.00208946

CUDA

jhammond@thetagpu13:~/PRK/Cxx11/sandbox$ for t in 1 2 4 8 16 32 ; do ./stencil-cuda 100 8000 $t star 4 ; done
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 1
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 23745.6 Avg time (s): 0.0941447
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 2
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 94231.9 Avg time (s): 0.0237236
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 4
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 347783 Avg time (s): 0.00642793
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 8
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 425630 Avg time (s): 0.00525227
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 16
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 245849 Avg time (s): 0.00909305
Parallel Research Kernels version 
C++11/CUDA Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Tile size            = 32
Type of stencil      = star
Radius of stencil    = 4
Solution validates
Rate (MFlops/s): 223730 Avg time (s): 0.00999204

SYCL

jhammond@thetagpu13:~/PRK/Cxx11/sandbox$ for t in 1 2 4 8 16 32 ; do ./stencil-sycl 100 8000 $t star 4 ; done
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 1
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 46322.8 Avg time (s): 0.0482597
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 2
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 165960 Avg time (s): 0.0134702
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 4
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 486228 Avg time (s): 0.00459768
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 8
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 1.00311e+06 Avg time (s): 0.0022286
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 16
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 1.0703e+06 Avg time (s): 0.00208868
Parallel Research Kernels version 
C++11/SYCL Stencil execution on 2D grid
Number of iterations = 100
Grid size            = 8000
Block size           = 32
Type of stencil      = star
Radius of stencil    = 4
SYCL Device:   A100-SXM4-40GB
SYCL Platform: NVIDIA CUDA BACKEND
Solution validates
64B Rate (MFlops/s): 1.06991e+06 Avg time (s): 0.00208946