EPYC Discussions

[amd0]

I would like to use AMD AOCL sparse library in a C program.

Specifically, I am using aocl library compiled using gcc.

I can build and run the C++ examples in the amd-sparse folder of aocl.

For example "sample_spmv.cpp" builds on my system using:

g++ sample_spmv.cpp -o sample_spmv -I/home/USER/aocl/4.1.0/gcc/include/ -L/home/USER/aocl/4.1.0/gcc/lib/ -L/home/USER/aocl/4.1.0/gcc/lib/libblis-mt.so -L/home/USER/aocl/4.1.0/gcc/lib_LP64/libaoclsparse.so -lflame -lblis-mt -laoclsparse -lm -lstdc++

The problem is that when I try to convert this example to a minimal C example, I get the following compiler errors:

gcc -Wall -c "min_ex.c" -I/home/USER/aocl/4.1.0/gcc/include/ -L/home/USER/aocl/4.1.0/gcc/lib/ -lflame -lblis-mt -lm -lstdc++ 
In file included from /home/USER/aocl/4.1.0/gcc/include/aoclsparse.h:45,
                 from min_ex.c:2:
/home/USER/aocl/4.1.0/gcc/include/aoclsparse_auxiliary.h:275:63: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token
  275 | aoclsparse_status aoclsparse_create_scsr(aoclsparse_matrix    &mat,
      |                                                               ^
/home/USER/aocl/4.1.0/gcc/include/aoclsparse_auxiliary.h:285:63: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token
  285 | aoclsparse_status aoclsparse_create_dcsr(aoclsparse_matrix    &mat,
      |                                                               ^
/home/USER/aocl/4.1.0/gcc/include/aoclsparse_auxiliary.h:339:67: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token
  339 | aoclsparse_status aoclsparse_export_mat_csr(aoclsparse_matrix     &csr,
      |                                                                   ^
/home/USER/aocl/4.1.0/gcc/include/aoclsparse_auxiliary.h:361:56: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token
  361 | aoclsparse_status aoclsparse_destroy(aoclsparse_matrix &mat);
      |                                                        ^
In file included from /home/USER/aocl/4.1.0/gcc/include/aoclsparse.h:48,
                 from min_ex.c:2:
/home/USER/aocl/4.1.0/gcc/include/aoclsparse_solvers.h:197:71: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token
  197 | aoclsparse_status aoclsparse_itsol_option_set(aoclsparse_itsol_handle &handle,
      |                                                                       ^
Compilation failed.

I tried to do a simple type redefinition, but it didn't work:

#include <stdio.h>
#include "aoclsparse.h"

/*
gcc min_ex.c -o min_ex -I/home/USER/aocl/4.1.0/gcc/include/ -L/home/USER/aocl/4.1.0/gcc/lib/ -L/home/USER/aocl/4.1.0/gcc/lib/libblis-mt.so -L/home/USER/aocl/4.1.0/gcc/lib_LP64/libaoclsparse.so -lflame -lblis-mt -laoclsparse -lm -lstdc++
*/

#define AOCLSPARSE_REF_TO_PTR(type) type *

#define aoclsparse_create_scsr(mat, ...) aoclsparse_create_scsr(mat, __VA_ARGS__)
#define aoclsparse_create_dcsr(mat, ...) aoclsparse_create_dcsr(mat, __VA_ARGS__)
#define aoclsparse_export_mat_csr(csr, ...) aoclsparse_export_mat_csr(csr, __VA_ARGS__)
#define aoclsparse_destroy(mat) aoclsparse_destroy(mat)

int main(void)
{
    return 0;
}

Am I missing something simple?

Could you convert "sample_spmv.cpp" to "sample_spmv.c" so that I can see how to use the library from C?

Thanks.

[shrjoshi]

Hello @amd0 

Thank you for writing to ServerGuru.
We are currently investigating this issue and will keep you updated on the same.

[shrjoshi]

Hello @amd0 

Below shared code is a C code referring to sample_spmv.cpp : 

sample_spmv.c : 

The changes between the cpp and C files are as below :

1. std::cout >> printf
2. #include <iostream> to  #include <stdio.h> 
                                             #include <stdlib.h>

This code can be compiled using the command :
gcc -Wall -xc++ sample_spmv.c -I~/aocl-linux-gcc-4.1.0/4.1.0/gcc/include -L~/aocl-linux-gcc-4.1.0/4.1.0/gcc/lib -lflame -lblis-mt -laoclsparse -lm

Please let us know if there is any further clarification required.

[shrjoshi]

Hello @amd0 

Can you please confirm if the above solution worked for you.
Also please let us know if there is any further clarification required.