Xyce is an open source, SPICE-compatible, high-performance analog
circuit simulator, capable of solving extremely large circuit
problems by supporting large-scale parallel computing platforms. It
also supports serial execution on all common desktop platforms, and
small-scale parallel runs on Unix-like systems. In addition to analog
electronic simulation, Xyce has also been used to investigate more
general network systems, such as neural networks and power grids.

The Xyce Parallel Electronic Simulator is a SPICE-compatible circuit
simulator, developed internally at Sandia National Laboratories
and funded by the National Nuclear Security Administration's
Advanced Simulation and Computing (ASC) Campaign. In continuous
development since 1999, Xyce is designed to run on large-scale
parallel computing platforms, though it also executes efficiently on a
variety of architectures, including single processor workstations. As
a mature platform for large-scale parallel circuit simulation, Xyce
supports standard capabilities available from commercial simulators,
in addition to a variety of devices and models specific to Sandia's
needs.

The package is intalled at: /opt/Xyce
Remember to set the library and path:

PATH=$PATH:/opt/Xyce/bin

For 32-bit:
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/Xyce/lib

For 64-bit:
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/Xyce/lib64

To run the suite test:
# cd /opt/Xyce/Xyce_Regression-6.3/TestScripts
# ./run_xyce_regression

For parallel simulation trilinos must be compiled with MPI.

Additonal requirements:
 - MPI (openmpi/mpich)
 - parMETIS

NOTE: Sources are not downloadable via wget. Please download manually
via browser.
