https://community.intel.com/t5/Intel-Integrated-Performance/FFTs-and-external-threading/m-p/875768#M9489 <P>Hi Dave,</P> <P>You can share FFTSpec between threads while FFT order is the same.</P> <P>Regards,<BR /> Vladimir</P> Tue, 10 Jun 2008 15:22:43 GMT Vladimir_Dudnik 2008-06-10T15:22:43Z https://community.intel.com/t5/Intel-Integrated-Performance/FFTs-and-external-threading/m-p/875767#M9488 I am using Windows threading to compute multiple FFTs simultaneously. I have been sharing the FFTSpec across the threads. I am wondering if this could cause a problem or impede performance? Should each thread maintain its own FFTSpec(s)? <BR /><BR />I currently have the built-in threading disabled. I get better performance this way, since there is less competition for the processing cores. The platform is WinXP64, 2xQuad 2.6GHz, with IPP 5.3.2.073, em64t.<BR /><BR />Dave<BR /> Tue, 10 Jun 2008 14:07:39 GMT https://community.intel.com/t5/Intel-Integrated-Performance/FFTs-and-external-threading/m-p/875767#M9488 dave4 2008-06-10T14:07:39Z https://community.intel.com/t5/Intel-Integrated-Performance/FFTs-and-external-threading/m-p/875768#M9489 <P>Hi Dave,</P> <P>You can share FFTSpec between threads while FFT order is the same.</P> <P>Regards,<BR /> Vladimir</P> Tue, 10 Jun 2008 15:22:43 GMT https://community.intel.com/t5/Intel-Integrated-Performance/FFTs-and-external-threading/m-p/875768#M9489 Vladimir_Dudnik 2008-06-10T15:22:43Z