Hey all I am working on very big size of matrix which have more zeros value compare to non zeroes value(Sparse Matrix). I want to do multiplication of this two sparse matrix so is there any function for Sparse Matrix multiplication. Now i m using mkl_?csrmm to do multiplication but in  this only i can take one sparse matrix and other is dense matrix. so please let me know how to do this task. if any alternative is available please tell that also.