What algorithm does matlab use when solving linear system A\b on GPU?
4 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
jinghao yang
el 13 de Ag. de 2021
Comentada: jinghao yang
el 16 de Ag. de 2021
According to the document, on CPU a non-special linear system is solved by LU decomposition. I wonder what algorithm does matlab use when solve it on GPU? How about the performance on GPU? I have done some test using random matrix, and the time difference on these hardwares is not obvious.
0 comentarios
Respuesta aceptada
Joss Knight
el 14 de Ag. de 2021
The same as for the CPU, MATLAB uses LU with pivoting for general square matrices and QR for general rectangular matrices. Performance depends considerably on the type of device. Most people have GPUs that are only optimized for single precision computation, so you should create single precision inputs to test performance.
Más respuestas (0)
Ver también
Categorías
Más información sobre Linear Algebra en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!