https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Is-FFT-function-multi-core-enabled-in-IPP-ver-5-2/m-p/866537#M2734 I am trying out my test code, written in C++ in Visual Studio 8. I am using Intel IPP Ver. 5.2 on a 64 bit QuadCore Intel Processor. <BR /><BR />I have two tests. <BR />1) This test function calls the "FIR" function set to do filtering in time domain. I am filtering large data sets. While running this function I can see in the windows task manager that all the 4 cores are being used to the maximum. This is what I expect.<BR /><BR /><BR />2) This test function calls the "FFT" function set to calculate spectrums of large data sets. While running this function I can see that only 1 of the cores is being used to the maximum while the other 3 cores are used minimally. I am guessing that Intel IPP FFT function is not multi-core friendly OR I have implemented it wrong. Please advise.<BR /> I have tried the above function using OPENMP directives and have been able to get all the cores working.<BR /><BR />Regards,<BR />G<BR /><BR /> Mon, 14 Jan 2008 23:25:06 GMT Deleted_U_Intel 2008-01-14T23:25:06Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Is-FFT-function-multi-core-enabled-in-IPP-ver-5-2/m-p/866537#M2734 I am trying out my test code, written in C++ in Visual Studio 8. I am using Intel IPP Ver. 5.2 on a 64 bit QuadCore Intel Processor. <BR /><BR />I have two tests. <BR />1) This test function calls the "FIR" function set to do filtering in time domain. I am filtering large data sets. While running this function I can see in the windows task manager that all the 4 cores are being used to the maximum. This is what I expect.<BR /><BR /><BR />2) This test function calls the "FFT" function set to calculate spectrums of large data sets. While running this function I can see that only 1 of the cores is being used to the maximum while the other 3 cores are used minimally. I am guessing that Intel IPP FFT function is not multi-core friendly OR I have implemented it wrong. Please advise.<BR /> I have tried the above function using OPENMP directives and have been able to get all the cores working.<BR /><BR />Regards,<BR />G<BR /><BR /> Mon, 14 Jan 2008 23:25:06 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Is-FFT-function-multi-core-enabled-in-IPP-ver-5-2/m-p/866537#M2734 Deleted_U_Intel 2008-01-14T23:25:06Z