cblas

问题 I need to sum all the elements of a matrix in caffe, But as I noticed, the caffe wrapper of the cblas functions ( 'math_functions.hpp' & 'math_functions.cpp' ) is using cblas_sasum function as caffe_cpu_asum that computes the sum of the absolute values of elements in a vector. Since I'm a newbie in cblas, I tried to find a suitable function to get rid of absolute there, but it seems that there is no function with that property in cblas. Any suggestion? 回答1: There is a way to do so using cblas

问题 cdef extern from "cblas.h": enum CBLAS_ORDER: CblasRowMajor=101 CblasColMajor=102 enum CBLAS_TRANSPOSE: CblasNoTrans=111 CblasTrans=112 CblasConjTrans=113 AtlasConj=114 This code returns the error CompileError: Command "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -IC:\ProgramData\Anaconda2\lib\site-packages\numpy\core\include -IC:\ProgramData\Anaconda2\lib\site-packages\numpy\core\include -IC:\ProgramData\Anaconda2\include -IC:

问题 I am using Intel's MKL LAPACKE and CBLAS to calculate yn = trans(a)*inv(zt)*a + trans(b)*inv(zl)*b Where a and b are m-by-n real matrices, zt and zl are m-by-m complex matrices. The resulting complex matrix yn is n-by-n. Here is how I am doing it: zt <- inv(zt) zl <- inv(zl) c <- zt*a yn <- trans(a)*c c <- zl*b yn <- trans(b)*c + yn The actual code: #include <math.h> #include <complex.h> #include <stdlib.h> #include <mkl_types.h> #define MKL_Complex16 _Complex double //overwrite type #include