https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Using-both-MKL-IPP-in-Visual-C-2005/m-p/872517#M8621 I added MKL to a project that is using IPP. It compiled but aborted when entering the ipp function ippsFFTFwd_RToCCS_32f with an error of access violation.I am using MKL version 10.1.1.022.the libraries I am using are:<BR />ippsr20.lib mkl_c.lib mkl_intel_thread.lib mkl_core.lib<BR /> Wed, 25 Mar 2009 16:37:43 GMT ruth_aloni-lavinice_ 2009-03-25T16:37:43Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Using-both-MKL-IPP-in-Visual-C-2005/m-p/872517#M8621 I added MKL to a project that is using IPP. It compiled but aborted when entering the ipp function ippsFFTFwd_RToCCS_32f with an error of access violation.I am using MKL version 10.1.1.022.the libraries I am using are:<BR />ippsr20.lib mkl_c.lib mkl_intel_thread.lib mkl_core.lib<BR /> Wed, 25 Mar 2009 16:37:43 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Using-both-MKL-IPP-in-Visual-C-2005/m-p/872517#M8621 ruth_aloni-lavinice_ 2009-03-25T16:37:43Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Using-both-MKL-IPP-in-Visual-C-2005/m-p/872518#M8622 <BR /> <P>IPP: It looks like your IPP's version is pretty old. I guess 4.1? ( btw- this version is EOL today ).Why are you use only ippsr20.lib? It seems you have to add ippcore.lib<BR />MKL: <BR />if you are using static linking mode (as an example) with MKL 10.1, <BR />You have to link the following libraries: mkl_intel_c.lib mkl_intel_thread.lib mkl_core.lib libiomp5md.lib<BR />or with sequential version:<BR />mkl_intel_c.lib mkl_sequential.lib mkl_core.lib</P> <P>I would recommend using sequential variant because of MKL's 10.1 treading supported by new libraries (libiom5md.lib) which incompatibility with the libguide40 from IPP.</P> Thu, 26 Mar 2009 06:45:42 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Using-both-MKL-IPP-in-Visual-C-2005/m-p/872518#M8622 Gennady_F_Intel 2009-03-26T06:45:42Z