lapacke

compilation error whith boost-python and lapack

[亡魂溺海] 提交于 2019-12-25 07:27:18
问题 I created a program using boost for extracting python variables and lapack for solving matrix. However I have some trouble in compilation process Here are my includes and the firsts line of code : #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION #include "lapacke.h" #include <math.h> #include <omp.h> #include <stdlib.h> #include <stdint.h> #include <stdio.h> #include <stdarg.h> #include <math.h> #include <sys/times.h> #include <exception> #include <fstream> #include <iostream> #include

errors using lapack C header in C++ with visual studio 2010

ぃ、小莉子 提交于 2019-12-23 10:55:14
问题 Please help me! It takes me hours to look up in the internet and I haven't found a solution.... I am trying to use the call lapack function from C++ functions but I failed at the very beginning. Here is my code: #include "stdafx.h" #include "targetver.h" extern "C" { #include "lapacke.h" } int main{} { return 0; } I know "lapacke.h" is a C header so I use the extern "C" clause. But while I try to compile this trivial function, I have the following error: Error 1 error C2146: syntax error :

How to use dsyev routine to calculate eigenvalues?

匆匆过客 提交于 2019-12-13 19:53:09
问题 i am trying to write code to calculate eign vector and eign values for a symmetric matrix. I understand how to calculate evalues using pen & paper but i am slightly confused with the api!. I am a beginner so i may be wrong in interpreting the api parameters. int main() { char jobz='V',uplo='U'; int lda=3,n=3,info=8,lwork=9; // lapack_int lda=3,n=3,info=8; int i; double w[3],work[3]; double a[9] = { 3,2,4, 2,0,2, 4,2,3 }; info=LAPACKE_dsyev(LAPACK_ROW_MAJOR,jobz,uplo, n ,a, lda , w); //dsyev_(

using malloc in dgels function of lapacke

痞子三分冷 提交于 2019-12-11 09:37:03
问题 i am trying to use dgels function of lapacke: when i use it with malloc fucntion. it doesnot give correct value. can anybody tell me please what is the mistake when i use malloc and create a matrix? thankyou /* Calling DGELS using row-major order */ #include <stdio.h> #include <lapacke.h> #include <conio.h> #include <malloc.h> int main () { double a[3][2] = {{1,0},{1,1},{1,2}}; double **outputArray; int designs=3; int i,j,d,i_mal; lapack_int info,m,n,lda,ldb,nrhs; double outputArray[3][1] = {

Proper way to calculate `trans(a)*inv(b)*a` with Intel MKL

喜欢而已 提交于 2019-12-10 22:42:04
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