Link Errors with 0.2.13 prebuilt for Windows

[imikejackson]

When compiling I get the following error on windows using the Visual Studio compilers.

CalculateMeanInnerProducts.cpp.obj : error LNK2019: unresolved external symbol cblas_sgemm referenced in function "protected: void __cdecl CalculateMeanInnerProducts::computeMeanInnerProduct(void)" (?computeMeanInnerProduct@CalculateMeanInnerProducts@@IEAAXXZ)

the code I am using looks like this:

cblas_sgemm(CblasRowMajor, CblasNoTrans, CblasTrans,
              msize,// M: Number of rows in matrices A and C.
              nsize, // N: Number of columns in matrices B and C.
              K, // K: Number of columns in matrix A; number of rows in matrix B.
              1.0f, // Scaling factor for the product of matrices A and B.
              A+i*lda,
              lda, //The size of the first dimention of matrix A; if you are passing a matrix A[m][n], the value should be m.
              B+j*ldb,
              ldb, //The size of the first dimention of matrix B; if you are passing a matrix B[m][n], the value should be m.
              0.f, // Scaling factor for matrix C.
              C,
              nsize //LDC: The size of the first dimension of matrix C; if you are passing a matrix C[m][n], the value should be m.
              );

This same code compiles on OS X against the Accelerate Framework and on Linux against LAPACK/CBLAS, I am just looking for something that is open-source and works on Windows. We would like to use it in the http://github.com/dream3d/dream3d.git project.

Thanks for any help
MJackson

[martin-frbg]

Trivial question: Do you see any indication that VS is actually trying to link against OpenBLAS ?

[xianyi]

@imikejackson , how did you link OpenBLAS at Visual Studio? Could you try this wiki page https://github.com/xianyi/OpenBLAS/wiki/How-to-use-OpenBLAS-in-Microsoft-Visual-Studio ?

[imikejackson]

I am using the prebuilt binaries that I downloaded from your website. I use CMake to find and link against OpenBLAS. The OpenBLAS library seems to be in the list of libraries to link against when I look at the command that gets executed to link. I have made sure that I am trying to link against the .lib files and not the actual DLL itself. (I know this from experience). Sort of weird as I have used earlier versions of OpenBLAS a few years ago and got things to work, but with a different project.