51
SUMMA Algorithm (continued)
For each col-row in the common dimension, flood the item and
combine it
[1..m,1..p] C := 0.0; -- Initialize C
for k := 1 to n do
[1..m,*] Col :=
>>[ ,k] A; -- Flood kth col of A
[*,1..p] Row :=
>>[k, ] B; -- Flood kth row of B
[1..m,1..p] C += Col*Row; -- Combine elements
end;
SUMMA is the easiest MM algorithm to program in ZPL