Doesn't the GPU Coder support singleton expansion of ARRAYFUN?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Shogo Muramatsu
le 25 Sep 2021
Commenté : Shogo Muramatsu
le 2 Oct 2021
I have a question about SINGLETON EXPANSION for ARRAYFUN on GPU.
For gpuArrays, @times with ARRAYFUN and direct calculation on M-file both work fine.
However, MEX generated by GPU Coder from a code using ARRAYFUN does not seem to perform SINGLETON EXPANSION well.
Doesn't the GPU Coder support SINGLETON EXPANSION of ARRAYFUN?
Shogo MURAMATSU
Sample code
function Y = arrayfuntest(m,X) %#codegen
Y = arrayfun(@times,m,X);
%Y = m.*X;
end
Code generation for ARRAYFUN
Code generation for a direct operation
Preparation of arrays
m = gpuArray(single([1;-1;1]))
X = gpuArray(rand(3,'single'))
Execution with M-file
Y = arrayfuntest(m,X)
MEX Generation
cfg = coder.gpuConfig('mex');
nChs = 64;
datatype = 'single';
aM = coder.typeof(gpuArray(cast(0,datatype)),[nChs 1],[1 0]);
aX = coder.typeof(gpuArray(cast(0,datatype)),[nChs nChs],[1 1]);
cfg.DynamicMemoryAllocation = 'Off';
cfg.GenerateReport = true;
codegen -config cfg -o arrayfuntest_mex arrayfuntest.m -args { aM, aX }
Execution with MEX-file
Y = arrayfuntest_mex(m,X)
0 commentaires
Réponse acceptée
Joss Knight
le 2 Oct 2021
Support for dimension expansion is actually restricted to the GPU version of arrayfun, and GPU Coder supports the CPU version's syntax. So the answer is no, it doesn't support dimension expansion.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Get Started with GPU Coder dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!