BSD 3-Clause License

PCSD  Copyright (c) 2017, The Regents of the University of California, 
through Lawrence Berkeley National Laboratory (subject to receipt of any
required approvals from the U.S. Dept. of Energy).  All rights reserved.
 
Redistribution and use in source and binary forms, with or without 
modification, are permitted provided that the following conditions are met:
 
(1) Redistributions of source code must retain the above copyright notice, 
this list of conditions and the following disclaimer.
 
(2) Redistributions in binary form must reproduce the above copyright 
notice, this list of conditions and the following disclaimer in the 
documentation and/or other materials provided with the distribution.
 
(3) Neither the name of the University of California, Lawrence Berkeley 
National Laboratory, U.S. Dept. of Energy nor the names of its contributors 
may be used to endorse or promote products derived from this software 
without specific prior written permission.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
THE POSSIBILITY OF SUCH DAMAGE.
 
You are under no obligation whatsoever to provide any bug fixes, patches,
 or upgrades to the features, functionality or performance of the source 
 code ("Enhancements") to anyone; however, if you choose to make your 
 Enhancements available either publicly, or directly to Lawrence Berkeley 
 National Laboratory, without imposing a separate written license agreement 
 for such Enhancements, then you hereby grant the following license: a  
 on-exclusive, royalty-free perpetual license to install, use, modify, 
 prepare derivative works, incorporate into other computer software, 
 distribute, and sublicense such enhancements or derivative works thereof, 
 in binary and source code form.