On Fri, Oct 14, 2022, 19:46 Peng Sun <p...@outlook.com> wrote: > Hi Stefano, > > No I used pip to install petsc4py after I installed PETSc. I did not see > the binding folder under /src >
Not sure which was the first version petsc4py was shipped with PETSc , for sure 3.18 has it. Best regards, > Peng Sun > ------------------------------ > *From:* Stefano Zampini <stefano.zamp...@gmail.com> > *Sent:* Friday, October 14, 2022 4:36 AM > *To:* Peng Sun <p...@outlook.com> > *Cc:* Zhang, Hong <hongzh...@anl.gov>; petsc-users@mcs.anl.gov < > petsc-users@mcs.anl.gov> > *Subject:* Re: [petsc-users] Issue with single precision complex numbers > in petsc4py > > > > On Oct 14, 2022, at 3:53 AM, Peng Sun <p...@outlook.com> wrote: > > Hi Hong, > > Thanks for the advice. I could not install petsc4py with the > --with-petsc4py=1 option, which gave me an "No rule to make target > 'petsc4py-install'" error when I ran "make install". That was why I > needed to install petsc4py separately after the PETSc was installed. > > > > After you installed PETSc, go to src/binding/petsc4py and run make install > there. It will install in .local and it will be visible to python. > Is this how you installed it? > > > Best regards, > Peng Sun > ------------------------------ > *From:* Zhang, Hong <hongzh...@anl.gov> > *Sent:* Thursday, October 13, 2022 4:30 PM > *To:* Peng Sun <p...@outlook.com> > *Cc:* petsc-users@mcs.anl.gov <petsc-users@mcs.anl.gov> > *Subject:* Re: [petsc-users] Issue with single precision complex numbers > in petsc4py > > It seems that you installed petsc4py separately. I would suggest to add > the configure option --with-petsc4py=1 and follow the instructions to set > PYTHONPATH before using petsc4py. > > Hong (Mr.) > > > On Oct 13, 2022, at 10:42 AM, Peng Sun <p...@outlook.com> wrote: > > > > Hi Matt, > > > > Sure, please see the attached configure.log file. Thanks! > > > > Best regards, > > Peng Sun > > > > > > From: Matthew Knepley <knep...@gmail.com> > > Sent: Thursday, October 13, 2022 6:34 AM > > To: Peng Sun <p...@outlook.com> > > Cc: petsc-users@mcs.anl.gov <petsc-users@mcs.anl.gov> > > Subject: Re: [petsc-users] Issue with single precision complex numbers > in petsc4py > > > > First send configure.log so we can see the setup. > > > > Thanks, > > > > Matt > > > > On Thu, Oct 13, 2022 at 12:53 AM Peng Sun <p...@outlook.com> wrote: > > Dear PETSc community, > > > > I have a question regarding the single precision complex numbers of > petsc4py. I configured PETSc with the “--with-scalar-type=complex > --with-precision=single" option before compiling, but all the DA structures > I created with petsc4py had double precision. > > > > Here is a minimum test code on Python 3.8/PETSc 3.12/petsc4py 3.12: both > print commands show data type of complex128. Could anybody please help > me? Thanks! > > > > import > > petsc4py > > > > import > > sys > > petsc4py.init(sys.argv) > > > > from petsc4py import > > PETSc > > > > da=PETSc.DA().create(sizes=[ > > 2,2,2],dof=1,stencil_type=0,stencil_width=1,boundary_type=1 > > ) > > da_1 = da.createGlobalVec() > > > > print > > (petsc4py.PETSc.ComplexType) > > > > print(da_1.getArray().dtype) > > > > > > > > Best regards, > > Peng Sun > > > > > > -- > > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which their > experiments lead. > > -- Norbert Wiener > > > > https://www.cse.buffalo.edu/~knepley/ > > <configure.log> > > >
