Developer Reference

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Partial Differential Equations Support

The
Intel® oneAPI Math Kernel Library (oneMKL)
provides tools for solving Partial Differential Equations (PDE). These tools are Trigonometric Transform interface routines (seeTrigonometric Transform Routines) and Poisson Solver (see Fast Poisson Solver Routines).
Poisson Solver is designed for fast solving of simple Helmholtz, Poisson, and Laplace problems. The solver is based on the Trigonometric Transform interface, which is, in turn, based on the
Intel® oneAPI Math Kernel Library
Fast Fourier Transform (FFT) interface (refer toFourier Transform Functions), optimized for Intel® processors.
Direct use of the Trigonometric Transform routines may be helpful to those who have already implemented their own solvers similar to the
Intel® oneAPI Math Kernel Library
Poisson Solver. As it may be hard enough to modify the original code so as to make it work with Poisson Solver, you are encouraged to use fast (staggered) sine/cosine transforms implemented in the Trigonometric Transform interface to improve performance of your solver.
Both Trigonometric Transform and Poisson Solver routines can be called from C and Fortran.
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.
Notice revision #20201201

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.