How to perform parallel multiplication of two two-dimensional matrices?

Question

Mathematics

Matrices contain random integers

Answer 1

CUDA code example .

Answer 2

Split each matrix in half vertically and horizontally, multiply and add these parts as needed, and combine back.
If matrix A consists of 4 blocks A11, A12, A21, A22, and matrix B consists of similar blocks B11, B12, B21, B22, then in matrix C = A*B C11 = A11*B11+A12*B21, C12 =A11*B12+A12*B22 and so on.