[petsc-users] petsc4py, cython

[Jaroslaw Piwonski (CAU)]

Dear Lisandro,

> Am 18.01.2018 um 17:13 schrieb Lisandro Dalcin <dalcinl at gmail.com>:
> 
> In Cython code using C types from petsc4py, you should do:
> 
> from petsc4py.PETSc cimport Vec,  PetscVec
> from petsc4py.PETSc cimport Mat,  PetscMat
> # etcetera
> 
> now you can "cdef"  either "PetscVec" (the low-level PETSc C type) and
> "Vec" (the higher-level petsc4py Python type)
> 
> Or you can just
> 
> from petsc4py.PETSc cimport *
> 
> to get all definitions, or even
> 
> from petsc4py cimport PETSc
> 
> then use properly-namespaced definitions "PETSc.PetscVec" (C type) and
> "PETSc.Vec" (Python type).

thank you! That was the missing link. Great!

Best regards,
Jaroslaw


> 
> 
> -- 
> Lisandro Dalcin
> ============
> Research Scientist
> Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
> Extreme Computing Research Center (ECRC)
> King Abdullah University of Science and Technology (KAUST)
> http://ecrc.kaust.edu.sa/
> 
> 4700 King Abdullah University of Science and Technology
> al-Khawarizmi Bldg (Bldg 1), Office # 0109
> Thuwal 23955-6900, Kingdom of Saudi Arabia
> http://www.kaust.edu.sa
> 
> Office Phone: +966 12 808-0459

—

Dr. Jaroslaw Piwonski

Christian-Albrechts-Universität zu Kiel
Institut für Informatik
Algorithmische Optimale Steuerung — CO2-Aufnahme des Meeres
Christian-Albrechts-Platz 4
24118 Kiel

Telefon: +49 431 880-7452
Telefax: +49 431 880-7618

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