krylov

Krylov subspace methods module.

Methods

• CG
• MrR
• k-skip CG
• k-skip MrR
• Adaptive k-skip MrR

directories

• v3
  • cpu
    • mpi
      • cg
      • mrr
      • kskipcg
      • kskipmrr
      • adaptivekskipmrr
    • cg
    • mrr
    • kskipcg
    • kskipmrr
    • adaptivekskipmrr
  • gpu
    • mpi
      • cg
      • mrr
      • kskipcg
      • kskipmrr
      • adaptivekskipmrr
    • cg
    • mrr
    • kskipcg
    • kskipmrr
    • adaptivekskipmrr

requirements

C libs

only CPU

• C Compiler
  • GCC
  • Intel C Compiler
  • etc...
• BLAS library
  • OpenBLAS
  • AppleBLAS
  • etc..

with GPU

• CUDA(10.1)

with MPI

• MPI library
  • OpenMPI(https://www.open-mpi.org/)
  • MVAPICH2(http://mvapich.cse.ohio-state.edu/)
  • Intel MPI
  • etc...

Pyhton3 modules

only CPU

• numpy
• scipy

with GPU

• cupy9.6.0

with MPI

• mpi4py

only exec with cuda and mpiexec.hydra(Intel MPI)

• fastrlock

settings

on macOS(10.14.6)

export below param

export PMIX_MCA_gds=hash

with cupy

expand mermory allocator limit

pool = cp.cuda.MemoryPool(cp.cuda.malloc_managed)
cp.cuda.set_allocator(pool.malloc)