Tridiagonal Solver for Ax=b

[Matt_S_]

I have been using dgesv for solving Ax=b, but my matrix A happens to be tridiagonal. I am wondering if there are any specific solvers in MKL that handle Ax=b where A is tridiagonal. Thanks in advance!

[Chao_Y_Intel]

Matt, 

These two LAPACK function support the  tridiagonal matrix. Can yo check if it works for you?

https://software.intel.com/en-us/node/520879
https://software.intel.com/en-us/node/520894

Thanks,
Chao

[Royi]

Are those any better than ?gtsv?