https://community.intel.com/t5/Intel-Integrated-Performance/Size-of-temporary-Buffer-for-ippmInvert/m-p/982757#M21477 <DIV>HI,</DIV> <DIV></DIV> <DIV>there was issue in IPP v4.1 with this function. This issue was solved in IPP v5.0 beta.</DIV> <DIV>For your reference, buffer size must be at least equal to (widthHeight* widthHeight + widthHeight), where widthHeight is size of the square matrix. <P>Vladimir</P><FONT color="#0000ff" size="3"> <P></P></FONT></DIV> Wed, 24 Aug 2005 02:53:34 GMT Vladimir_Dudnik 2005-08-24T02:53:34Z https://community.intel.com/t5/Intel-Integrated-Performance/Size-of-temporary-Buffer-for-ippmInvert/m-p/982756#M21476 Hi,<BR /><BR />I was having a lot of weird problems in my app and solved them increasing the size of the tempbuffer variable in the ippmInvert function.<BR /><BR />I was using ippsMalloc_64f(numRows * numCols). And the problems were solved when I increased the length to (numRows * numCols * 2).<BR /><BR />But it was a guess and I'm worried it might not work depending on the size of the original matrix.<BR /><BR />what would be a better choice of buffer size?<BR /><BR />Thanks very much.<BR /><BR />Cesar Tue, 02 Aug 2005 05:29:19 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Size-of-temporary-Buffer-for-ippmInvert/m-p/982756#M21476 cesarcastro 2005-08-02T05:29:19Z https://community.intel.com/t5/Intel-Integrated-Performance/Size-of-temporary-Buffer-for-ippmInvert/m-p/982757#M21477 <DIV>HI,</DIV> <DIV></DIV> <DIV>there was issue in IPP v4.1 with this function. This issue was solved in IPP v5.0 beta.</DIV> <DIV>For your reference, buffer size must be at least equal to (widthHeight* widthHeight + widthHeight), where widthHeight is size of the square matrix. <P>Vladimir</P><FONT color="#0000ff" size="3"> <P></P></FONT></DIV> Wed, 24 Aug 2005 02:53:34 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Size-of-temporary-Buffer-for-ippmInvert/m-p/982757#M21477 Vladimir_Dudnik 2005-08-24T02:53:34Z