Hello GLPK users,
I am a newbie to GLPK - but am enjoying this !
I need to input (or specify) a large sparse integer matrix A which is
say 1500 X 1500.
Only a few entries are integers, say 100 of them are integers and the
rest are zeros.
How does one go about inputting this in to GLPK ?
How is this done neatly in GLPK ? (ie initializing all entries of A to
zero) and inputting only the non-zero ones
I was trying something along the lines of saying (in the MOD file)
set I := 1..1500;
set J := 1..1500;
param A{i in I, j in J}, >=0, default 0.0;
How are the non-zero entries specified then ?
When I tried setting [in the DAT file]
A[1,2] := 5; A[3, 2]:=9, A[1,6]: = 6;
I get an error.
Please help !!!
Many thanks || Rajesh
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