What is a SGEMM ?

Chapter 10.1 : What is a SGEMM ?

A SGEMM is a Single precision GEneral Matrix Multiply.

In our case, we are going to deal with square matrices of size N.

Mathematicaly it is :
nothing

In C++ code :

void sgemm(float* matOut, const float * matX, const float* matY, long unsigned int size){
	for(long unsigned int i(0lu); i < size; ++i){
		for(long unsigned int j(0lu); j < size; ++j){
			float res(0.0f);
			for(long unsigned int k(0lu); k < size; ++k){
				res += matX[i*size + k]*matY[k*size + j];
			}
			matOut[i*size + j] = res;
		}
	}
}