Big Datasets for Simplex Algorithm (Linear Programming)

Question

I need Big Datasets to test a parallel version of the simplex algorithm i am writing. The only Datasets i can find are in a Format called MPS but i cannot find a parser for MPS in Python or C.

I would like them to directly contain the Matrix A and the vectors b and c if possible (in an easy to parse format).

Or are there any easy to use parsers for MPS in C, Python, Java or Javascript?

thanks!