Re: [petsc-users] Example for adaptive high-order FEM in PETSc

On Sat, Jan 12, 2019 at 6:59 PM Manav Bhatia via petsc-users < petsc-users@mcs.anl.gov> wrote: > I have been studying the source code and the manual entries in the > documentation and have a better understanding of setting up a high-order DG > analysis. > > I have been able to identify the routine

Re: [petsc-users] Example for adaptive high-order FEM in PETSc

Mark Adams via petsc-users writes: >> The following is still unclear and I would appreciate some guidance: >> >> — A implicit DG solve of the inviscid Euler equations would require >> Jacobian contributions from the Riemann Solver at element interfaces. I do >> not see the ability to define Jacob

[petsc-users] Using real and complex matrices together

Hi PETSC users, Inside my codes, I have both complex and real matrices. To solve complex matrices, I build and use complex version of PETSC. In this case, is there any way to use real matrices too? Do you have such a PETSC code example? Until now, I have used complex matrices to represent real mat

Re: [petsc-users] Using real and complex matrices together

It is not supported, sorry. Some users do it with careful linking via multiple shared libraries, but that is fragile and doesn't interoperate. Evan Um via petsc-users writes: > Hi PETSC users, > > Inside my codes, I have both complex and real matrices. To solve complex > matrices, I build and u

Re: [petsc-users] Example for adaptive high-order FEM in PETSc

> > > > > The Riemann solver computes the flux and the Jacobian is assembled in > PETSc. > > If you run this example with an implicit integrator, it uses FD coloring > to compute the Jacobian. Manav wants an analytic Jacobian. I was > hoping Matt could answer this; I haven't used Plex in that way

[petsc-users] C++ compilation error

Hi, I am trying to make a simple hello world script using a makefile that includes petsc, and am getting the error "g++: error: unrecognized command line option ‘-wd1572’" I am not sure how to fix it. Please let me know if you have some ideas on how to fix this. Thank you

Re: [petsc-users] C++ compilation error

Presumably PETSc is buit with intel compilers - but somehow gcc/g++ is getting used via your makefile. Do you get this error when you use PETSc example with a petsc makefile? Perhaps you need to format your makefile using petsc makefile format. For ex: check src/tao/leastsquares/examples/tutorials

Re: [petsc-users] C++ compilation error

On Sun, Jan 13, 2019 at 2:58 PM Choudhary, Devyani D via petsc-users < petsc-users@mcs.anl.gov> wrote: > Hi, > > > I am trying to make a simple hello world script using a makefile that > includes petsc, and am getting the error > > "g++: error: unrecognized command line option ‘-wd1572’" > > I am

Re: [petsc-users] C++ compilation error

Thank you for the response Satish, but I am still encountering the same issue. Following is my makefile: PETSC_DIR=/usr/local/pacerepov1/petsc/3.8.3/mvapich2-2.1/intel-15.0/opt/lib/petsc/ include ${PETSC_DIR}/conf/variables include ${PETSC_DIR}/conf/rules include ${PETSC_DIR}/conf/test hello:

Re: [petsc-users] Using real and complex matrices together

Hi Evan, I’m one of those users, who has multiple shared libraries. It is quite stable since I create wrappers around the PETSc functions and hide the native PETSc symbols. But, yes, the interoperations are not possible. Michael. Sent from Mail

Re: [petsc-users] C++ compilation error

Do you get this error with any petsc example – say src/ksp/ksp/examples /tutorials/ex2 ? Also, copy paste the complete output from make – when building example or your Test code. Satish From: petsc-users on behalf of Choudhary, Devyani D via petsc-users Sent

[petsc-users] Operand '<' error

Hi, I am trying to compare two PetscScalar values, but am getting this error: error: no operator "<" matches these operands operand types are: PetscScalar < PetscScalar Please do share if you know how to resolve this error. Sincerely, Devyani

Re: [petsc-users] Operand '<' error

complex numbers cannot be larger than other complex numbers or smaller. If you want to compare the real parts you can use PetscRealPart(a) < PetscRealPart(b) similarly for imaginary parts Barry > On Jan 13, 2019, at 5:06 PM, Choudhary, Devyani D via petsc-users > wrote: > > H

Re: [petsc-users] C++ compilation error

Glad you figured this out. Thanks for the update. Satish On Sun, 13 Jan 2019, Choudhary, Devyani D wrote: > It was the issue with the compiler, and is resolved now. I can run the > examples now. > > Thank you for your help. > > > Devyani > > > From: Balay, S