typedef const char *KSPType; #define KSPRICHARDSON "richardson" #define KSPCHEBYSHEV "chebyshev" #define KSPCG "cg" #define KSPGROPPCG "groppcg" #define KSPPIPECG "pipecg" #define KSPPIPECGRR "pipecgrr" #define KSPPIPELCG "pipelcg" #define KSPPIPEPRCG "pipeprcg" #define KSPPIPECG2 "...
Configuration Mappings Each new enumeration maps to PETSc strings (e.g.,"pipefcg","bddc") so that end-users can do--ksp-type=pipefcgor--pc-type=bddc, leveraging advanced PETSc features that were previously unavailable in Feel++. 2. Proposed Refactoring: Splitting Files by Class /feelpp/...
45、s:计算预条件子的特征值kspcomputeeigenvaluesexplicitly:用直接方法计算预条件子的特征值kspgetsolution:获得解向量的值kspgetrhs:获得右边向量的值kspbuildsolution:获得每个迭代步解向量的逼近值kspbuildresidual:获得每个迭代步残差的逼近值3.1.3 预条件子pcsettype:设置预条件子的类型pcilusetlevels:设置ilu预条件...
然后,可以在运行时使用选项 -ksp_type gmres 来选择广义最小残量法 GMRES 算法来覆盖上述选择, 这种参数的改变只需要在程序中预置 KSPSetFromOptions(KSP ksp)即可实现。 事实上每一个 PETSc 进程都维护一个选项名和值的数据库 (以文本字符串的方式存储) 。 代码 PetscInitialize(int *argc,char ***args,...
"snes_type": "newtonls", "ksp_type": "fgmres", "ksp_rtol": 1e-1, "ksp_monitor": None, "pc_type": "fieldsplit", "pc_fieldsplit_type": "additive", "fieldsplit_0": solver_mumps_assembled, "fieldsplit_1": solver_mumps_assembled, ...
-ksp_view 显示迭代法求解器的信息 -ksp_type fgmres 将迭代方法改为fgmres 2、PETSc程序示例:帮助文档 基本所有函数的解释 目录:petsc-3.3-p5\docs\manualpages PETSc组件的使用示例 目录:petsc-3.3-p5\src 如KSP组件:petsc-3.3-p5\src\ksp\ksp\examples\tests PETSc用户文档 目录:petsc-3.3-p5\src\docs...
bsmith@petsc-gpu-02:/scratch/bsmith/petsc/src/ksp/ksp/tutorials$ ./ex34 -da_grid_x 192 -da_grid_y 192 -da_grid_z 192 -dm_mat_type seqaijhipsparse -dm_vec_type seqhip -ksp_max_it 10 -ksp_monitor -ksp_type richardson -ksp_view ...
mpirun –np 4 example -ksp_type bcgs –ksp_xmonitor 并行性能自动统计、输出(— log_summary); 用户自定义选项(如网格规模、进程个数、图形可视化输出等); 3.与其他库软件的功能互用与接口: BlockSolve95(并行ICC(0)、ILU(0)预条件); ESSL(IBM快速稀疏矩阵LU分解); Matlab(数据的图形和数值后处理);...
./test_lu_b1 -ksp_type preonly -pc_type lu -pc_factor_mat_solver_type mkl_pardiso -log-summary -ksp_view -ksp_monitor -mat_mkl_pardiso_6812>&1|tee pardiso.log mkl_cpardiso与mkl_pardiso的区别在于mkl_pardiso只能多线程,不可多进程,需要设置环境变量OMP_NUM_THREAD。
> > > *-ksp_type cg -pc_type gamg -pc_gamg_type agg* > > > > > > > > > So I guess there is a weird thing happening in my code during the solve in > > > PETSc with MPI GPU Aware, as all the previous configurations works with ...