An emulator for reduced-precision floating-point calculations in Fortran. Licensed under the Apache 2.0 license (http://www.apache.org/licenses/LICENSE-2.0.html).
- Documentation: http://rpe.readthedocs.io
- Mailing list: https://groups.google.com/d/forum/aopp-pred-rpe
See the online documentation for a user guide,
developer guide and API reference. The source code for the documentation is
distributed along with rpe in the doc/ directory.
The emulator is described in a GMD paper. If you use the software for published research please cite this paper, as well as the DOI for the software repository itself.
The library is built using GNU Make and a fortran compiler. The default action
when invoking make is to build the static library lib/librpe.a and the
Fortran module modules/rp_emulator.mod.
The code is tested with and set-up for building with GNU gfortran or Intel
Fortran (ifort) compilers. Which compiler to use is determined by the value
of the F90 environment variable. If this variable is not set the Makefile
will use gfortran. The default build is a simple invocation of make:
make
It is also possible to build a shared library lib/librpe.so using the
shared target of the Makefile:
make shared
You can optionally specify a compiler on the command line:
F90=ifort make
If you want to use a compiler other than gfortran or ifort you will
need to specify both the appropriate F90 variable and the correct FFLAGS
for your compiler, bearing in mind the source code contains some lines over
132 characters in length. Compiler flags are also used to ensure the module
rp_emulator.mod is placed in the modules/ directory in the source tree.
The source code for the emulator is split across several files, and makes use
of the C preprocessor to combine them during the build process. If you want to
generate a unified source file for ease of use you can use the source target
of the Makefile:
make source
This will generate the file src/processed/rp_emulator.f90 which can be
integrated into the source of other projects.