topic Re: Does automatic muliprocessor scaling affect 1D FFT? in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Does-automatic-muliprocessor-scaling-affect-1D-FFT/m-p/912738#M12278 I actually found the answer to my question. There is no parralelization when computing a single fft at a time. However, multiple FFT's can be automatically done in parallel. <BR /> Fri, 01 Sep 2006 01:35:31 GMT bobertrg270 2006-09-01T01:35:31Z Does automatic muliprocessor scaling affect 1D FFT? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Does-automatic-muliprocessor-scaling-affect-1D-FFT/m-p/912737#M12277 Hello,<BR /><BR />I am computing 1D forward FFT's using DftiComputeForward and am not seeing a change in performance when I run on mulit-core machines. I have tried setting OMP_NUM_THREADS=numProcs. Can someone please tell me what I need to do to enable mulitprocessor scaling? <BR /><BR />Thank you,<BR /> Bob<BR /> Thu, 31 Aug 2006 23:18:00 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Does-automatic-muliprocessor-scaling-affect-1D-FFT/m-p/912737#M12277 bobertrg270 2006-08-31T23:18:00Z Re: Does automatic muliprocessor scaling affect 1D FFT? https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Does-automatic-muliprocessor-scaling-affect-1D-FFT/m-p/912738#M12278 I actually found the answer to my question. There is no parralelization when computing a single fft at a time. However, multiple FFT's can be automatically done in parallel. <BR /> Fri, 01 Sep 2006 01:35:31 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Does-automatic-muliprocessor-scaling-affect-1D-FFT/m-p/912738#M12278 bobertrg270 2006-09-01T01:35:31Z