<div>Hi,</div>
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<div>I'm still relatively new to PETSC but I've finally managed to solve my own poisson eqn using it in about a week's time.Thank you for writing such a good solver.</div>
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<div>However, I have some questions still about PETSC:</div>
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<div>1. Are petscscaler the same as real nos.? I am writing in double precision or real(8). So are these 2 interchangeable? (same as petscint and integer).</div>
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<div>2. while linking in compaq visual fortran, I get the warning message about conflict library with LIBCMT. Is it important or can I just ignore it?</div>
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<div>3. I am writing in f90 free form format. When I modify from fixed f77 format to f90, it gives me a lot of error, which seems to be the include file error. So, is it possible to write in f90 format?</div>
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<div>4. I am writing a Navier stokes solver and I'm using PETSC to solve the poisson eqn. If only the RHS changes with each time step, do I need to call </div>
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<div>VecCreateSeq</div>
<div><insert values in RHS b></div>
<div>VecAssemblyBegin</div>
<div>VecAssemblyEnd</div>
<div>VecDestroy</div>
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<div>at each time step? I don't think I can (or I should) change values of b after VecAssemblyBegin,VecAssemblyEnd, or can I?</div>
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<div>Thank you very much and have a nice day</div>
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<div>Regards,</div>
<div>Ben</div>