2DECOMP Logo Library for 2D pencil decomposition and distributed Fast Fourier Transform

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The latest version is 1.5.847, released on 2012-10-08 (download here). See Change Log here.

To build this library, follow the instructions in the Installation and Compilation page.

Optionally, to use the Shared-memory implementation, download the FreeIPC package and follow the instructions here. FreeIPC is distributed separately because it uses a different software license.


Open Petascale LibrariesYou can also find 2DECOMP&FFT as part of the Open Petascale Libraries. The Open Petascale Libraries is a "global initiative encouraging and accelerating the collaborative development of general-purpose and application-specific numerical libraries for the emerging generation of supercomputers".


Software License

Copyright (c) 2011, The Numerical Algorithms Group (NAG)
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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 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.