Hi Harish, go to nek5_svn/trunk then svn update tools then try to edit / run maketools again with gfortran For a prenek manual, you might look at the (very dated) manual www.mcs.anl.gov/~fischer/nekmanual.pdf and also: www.mcs.anl.gov/~fischer/primer.pdf Paul On Tue, 29 Dec 2009, [email protected] wrote:

Hi,

I am new to Nek5000. I can compile the code with OpenMPI compilers 'mpi77' & 'mpicc' and run the code in parallel up to 8 processors. Though, I do get some warnings during compilation.

Then, I wanted to setup a 2D case for flow over a backward facing step and run it. This is were I ran into hurdles.

I could not compile genbox using maketools as it gave me compiling errors. The compilers I have specified in the maketools executable are:

*************** # specify your compilers here F77="gfortran" CC="gcc" ***************

Following are the compiling errors:

**************** [harish@cmtl tools]$ ./maketools genbox ---------------------- Make genbox... ---------------------- make[1]: Entering directory `/home/harish/nek5_svn/trunk/tools/genbox' gfortran -mcmodel=medium -c genbox.f In file genbox.f:648

buf(8) = 'C' 1 Error: Can't convert CHARACTER(1) to REAL(4) at (1) In file genbox.f:1551

r = x(2) 1 Warning: Array reference at (1) is out of bounds make[1]: *** [genbox.o] Error 1 make[1]: Leaving directory `/home/harish/nek5_svn/trunk/tools/genbox' make: *** [all] Error 1 *****************

Then, I compiled prenek and used 'prex' for meshing. But, I had trouble understanding how to use it. Can you direct me to some resources which explain the use of 'prex' for making meshes.

For the backward facing step, genbox would be most useful to make the mesh as it has only 3 boxes and not a complicated geometry. But knowing how to use 'prex' would be useful as well.

Thanks,

Harish Kanchi.

_______________________________________________ Nek5000-users mailing list [email protected] https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users