performance of svd

Hi,

I have a program written with both matlab and fortran. The main component of the program is a loop and in each loop there is a svd and some simple calculations. I profile the matlab program and it tells me majority of the time is spent in the svds.

The fortran program was written in the hope that it can greatly speedup the computation. But to my surprise, the two programs use roughly the same time to finish. They both uses about 80% cpu of the computer.

Has anyone has such experience? Should I recalibrate my expectations about fortran?

Thanks!!!

Bo