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一个用来实现偏微分方程中网格的计算库

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CONTACT:

Greg Sjaardema,
Sandia National Laboratories,
[e-mail]

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LICENSE:
The ExodusII library is licensed under the terms of the BSD License. 

Legal stuff (copyright, licensing restrictions, etc.) can be found in
the file COPYRIGHT which contains:

1. The Sandia Corporation Copyright Notice.
2. The BSD License.

We appreciate feedback from users of this package.  Please send
comments, suggestions, and bug reports to Greg Sjaardema <[e-mail]>.
Please identify the version of the package.

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BUILDING

There are 3 methods for building exodusII.

1. SEAMS/SEACAS Build system which is based on imake.  If you have a
SEAMS or SEACAS installation, you can use its build system.  In the
top-level exodusii directory, do 'accmkmf' followed by 'make
Makefiles' and then 'make'

2. CMAKE: type 'cmake .' or 'cmake -i' to generate the Makefiles
followed by 'make'.  There is an issue with finding the required
netcdf library that I am not good enough at cmake to solve.  The
easiest method is to symbolically link the netcdf library into the
cbind directory and the netcdf include into the cbind/include
directory. 

3. Makefile.standalone.  Edit the top-level Makefile.standalone file
and specify the compiler and other options as detailed in the
file. Then, do "make -f Makefile.standalone".

Once you have built the library, you can test it by typing "make
check"


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NETCDF

The exodusII library uses the netcdf library for low-level data
storage.

ExodusII requires NetCDF version 3.6.0 or later with the "large-model
modifications". 

The netcdf library must be modified slightly in order to handle the
exodusII datamodel. The specific changes are:

1. src/libsrc/netcdf.h -- Modify the following defines:

#define NC_MAX_DIMS	65536	 /* max dimensions per file */
#define NC_MAX_VARS	524288	 /* max variables per file */
#define NC_MAX_VAR_DIMS	8        /* max per variable dimensions */

2. src/ncdump/ncdump.c -- Due to the increased sizes above, the 'dims'
and 'vdims' arrays are malloc'd instead of static arrays which fail
with the increased sizes.


347a348,351
> #if 0
>     /* The following code was blowing out the stack on some systems.
>      * Changed code to get the memory off the heap using malloc instead
>      */
349a354,357
> #else
>     struct ncdim *dims;               /* dimensions */
>     size_t *vdims;            /* dimension sizes for a single variable */
> #endif
359a368,370
>     dims = NULL;
>     vdims = NULL;
>
388c399
<     if (ndims > 0)
---
>     if (ndims > 0) {
389a401,403
>       dims  = malloc(ndims * sizeof(struct ncdim));
>       vdims = malloc(ndims * sizeof(size_t));
>     }
508a523,526
>                   if (dims)
>                     free(dims);
>                   if (vdims)
>                     free(vdims);
519a538,541
>     if (dims)
>       free(dims);
>     if (vdims)
>       free(vdims);

3. When running the netcdf tests, you may have to do "unlimit
stacksize" to avoid some failures due to the increased define sizes
above.

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