Hi, I have constructed an LPX object and loaded my model/data in it successfully. However, a call to lpx_simplex returns LPX_E_FAULT.
Now, this is particularly strange because I get the correct objective value if I call lpx_write_cpxlp in this main program and lpx_read_cpxlp and lpx_simplex from a different test program. Can somebody elaborate on this error. The manual says that the initial basis may be invalid; does this mean that I have to manually add slack and artificial variables in my main program but this is not required when the model is read from a file? Thanks, Manish Jain University of Southern California
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