File: 10.3.txt

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gap> M:=RandomMat(15000,15000);;
gap> N:=RandomMat(15000,15000);;
gap> S:=List([1..15],i->ChildCreate());;

gap> Exec("date +%s");
1716156583
gap> ChildPutObj(M,"M",S);
gap> ChildPutObj(N,"N",S);
gap> for i in [1..15] do
> cmd:=Concatenation("A:=M{[1..1000]+(",String(i),"-1)*1000}*N;");
> ChildCommand(cmd,S[i]);
> od;
gap> A:=[];;
gap> for i in [1..15] do
>  C:=ChildGet("A",S[i]);
>  Append(A,C);
> od;
gap> Exec("date +%s");
1716157489

gap> AA:=M*N;;Exec("date +%s");
1716164405

gap> speedup:=1.0*(64405-57489)/(57489-56583);
7.63355