PETSc提供C接口,KML_SOLVER同样也提供了C接口,但接口名及接收参数不一致,需要进行对应功能的切换,举例如下: 迁移前 KSP ksp; PetscErrorCode ierr; ierr = KSPCreate(PETSC_COMM_WORLD,&ksp); ierr = KSPSetOperators(ksp,A,A); 迁移后 int n = 8; int ia[9]; int ja[17]; double a[17];...
PETSc作为非线性PDE的求解器“ PETSc是一套数据结构和例程,用于通过偏微分方程建模的科学应用程序的可扩展(并行)解决方案” [请参见: : ] 编译中 假设您已使用指定的gcc和g ++编译器正确安装了PETSc。 转到CMakeLists.txt并为gcc和g ++编译器更改第9行和第17行。 转到FindPETSc.cmake,并将行26/27更改为...
In an incompressive flow solver ISIS-CFD, the most time consuming part is the linear solver for the pressure equation. Its preconditioning method and solver are neither scalable nor optimized for parallel computation. The Portable, Extensible Toolkit for Scientific Computation (PETSc) contains many ...
> /Users/markadams/Codes/petsc/gmakefile.test PETSC_ARCH=arch-macosx-gnu-O > PETSC_DIR=/Users/markadams/Codes/petsc test > Using MAKEFLAGS: --no-print-directory -- > PETSC_DIR=/Users/markadams/Codes/petsc PETSC_ARCH=arch-macosx-gnu-O > s=ksp_ksp_tutorials-ex1_mpi_linear_solve...
PCFactorSetMatSolverType(subPc, MATSOLVERMKL_PARDISO); set solver for LU SetPardisoParams("pardiso"); set mkl related options including -mat_mkl_pardiso_65 equal to the desired #threads; return code after PetscOptionsSetValue is ok, so I presume the option is set correctly. ...
Furthermore, TOUGH2's main computational unit is a linear equation solver. In parallel computing, a lot of effort has been spent to develop highly efficient parallel linear equation solvers. In this paper, we present TOUGH2-PETSc, a parallel implementation of TOUGH2 that uses PETSc to solve ...
SOLVERLAB Python library paths: /path/to/SOLVERLAB_install/lib/SOLVERLAB:/path/to/SOLVERLAB_install/bin/SOLVERLAB PETSc, SLEPc and HDF5 library path: ${PETSC_DIR}/${PETSC_ARCH}/lib MED library path: ${MEDFILE_ROOT_DIR}/lib MEDCOUPLING library path: ${MEDCOUPLING_ROOT_DIR}/libStand...
PETSc TSAdjoint can compute the first-order derivative, that is, the gradient of a scalar functional, and the Hessian-vector product, which carries second-order derivative information, while requiring minimal input (a few callbacks) from the users. The adjoint model employs optimal checkpointing ...
PETScWe address the development of a modular implementation of the MGRIT (Multi Grid-In-Time)algorithm to solve linear and nonlinear systems that arise from the discretization of evolutionarymodelswith a parallel-in-time approach in the context of the PETSc (the Portable, ExtensibleToolkit for ...
After analyzing the discrete and linear systems of Open FOAM, we reconstruct the linear system based on the common matrix storage scheme with the interfaces provided by PETSc, which decouple the linear system with the grid. Then it is easier to develop high-order schemes and finite-element ...