MKL 7.2.1_003 Linux sgesv does not solve correct integer linear systems.

MKL 7.2.1_003 Linux sgesv does not solve correct integer linear systems.

I will provide tomorrow the linear systems if you want me to.
But i tried 4 3x3 integer linear systems copied directly from my linear algebra book and sgesv solved only ony of those systems correctly.The other results were not even close to the correct ones.
I used C and both ICC and GCC

Why does this happen ??

PS:I know it's not the correct forum but is there a mirror for downloading the new ICC compiler ?
20-25 KB/s is kinda slow.

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