https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767992#M455 Hi. <BR />What I meant in the prev thread ippsMean 1 , ippsMeanColumn has the solution in how to make the averages for example in the FFT , let's suppose to have 1024 of FFT's beans magnetudes and we want to average them for 20 times , with ippsMeanColumn simple giving the 1024x20 array's pointer you have the result for each column in one 1024 1D array . no loop just one call , what Isee with ippsMean instead you have just a number for the average of one row, seem to be another job . Is this right ? or what else now can do the mentioned FFT job ? <BR />Thanks<BR />Cartu<BR /> Thu, 09 Dec 2010 20:46:05 GMT carlo-turri 2010-12-09T20:46:05Z https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767992#M455 Hi. <BR />What I meant in the prev thread ippsMean 1 , ippsMeanColumn has the solution in how to make the averages for example in the FFT , let's suppose to have 1024 of FFT's beans magnetudes and we want to average them for 20 times , with ippsMeanColumn simple giving the 1024x20 array's pointer you have the result for each column in one 1024 1D array . no loop just one call , what Isee with ippsMean instead you have just a number for the average of one row, seem to be another job . Is this right ? or what else now can do the mentioned FFT job ? <BR />Thanks<BR />Cartu<BR /> Thu, 09 Dec 2010 20:46:05 GMT https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767992#M455 carlo-turri 2010-12-09T20:46:05Z https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767993#M456 Cartu,<BR /><BR />could you please compare performance of loop of 20 iterations of calls ippsMean from 7.0 with performance of ippsMeanColumn from 6.1? I actually do not think there is big difference in performance.<BR /><BR />Regards,<BR /> Vladimir Thu, 09 Dec 2010 21:44:07 GMT https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767993#M456 Vladimir_Dudnik 2010-12-09T21:44:07Z https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767994#M457 I think the two are not analogous. When we want to average across a set of vectors, the data is not aligned such that ippsMean can be used. If it were, it might mean thousands of calls to ippsMean.<DIV><SPAN style="font-family: Verdana, Arial, Helvetica, sans-serif;"><BR /></SPAN></DIV><DIV><SPAN style="font-family: Verdana, Arial, Helvetica, sans-serif;">The preferred alternative is, I think, is to use ippsAdd_*_I repeatedly, followed by an ippsDivC_*_I.</SPAN></DIV><DIV><DIV><SPAN style="white-space: pre;"> </SPAN></DIV></DIV> Tue, 26 Apr 2011 02:07:58 GMT https://community.intel.com/t5/Intel-Integrated-Performance/ippsMean-2/m-p/767994#M457 jeffc111 2011-04-26T02:07:58Z