function matmul_dist_3!(C,A,B)
    m = size(C,1)
    n = size(C,2)
    l = size(A,2)
    @assert size(A,1) == m
    @assert size(B,2) == n
    @assert size(B,1) == l
    @assert mod(m,nworkers()) == 0
    # Implement here
    nrows_w = div(m,nworkers())
    @sync for (i,w) in enumerate(workers())
        rows_w = (1:nrows_w) .+ (i-1)*nrows_w
        Aw = A[rows_w,:]
        ftr = @spawnat w begin
            Cw = similar(Aw,nrows_w,n)
            matmul_seq!(Cw,Aw,B)
            Cw
        end
        @async C[rows_w,:] = fetch(ftr)
    end
    C
end

Solution to Matrix Multiplication Exercises¶

Implementation of Algorithm 3¶