On Sat, 1 Mar 2014 23:50:15 +0100 Anton Gladky wrote: > (D) link elmer against libmetis and libmumps to escape linkage > against SCOTCH. If it is possible, of course.
Hi Anton, yes, METIS (the serial version) seems to be under the Apache License v2.0 which is compatible with the GNU GPL v3 (but not with the GNU GPL v2). Hence, as long as libelmersolver-6.1 is not linked with other Apache-v2-incompatible libraries, this fourth strategy could also solve the licensing issue. Of course, assuming it is technically feasible, as you said. Please note that, although METIS is Free Software under the Apache License v2.0, its parallel version ParMETIS seems [1] to be restricted to educational/research purposes, thus being non-free software. [1] http://glaros.dtc.umn.edu/gkhome/metis/parmetis/download It would be great if someone managed to get in touch with ParMETIS copyright holders and persuaded them to re-license it under DFSG-free and GPL-compatible terms. The Apache License v2.0 would be very good, but it would be even greater, if the chosen license were GPL-v2-and-v3-compatible (such as the GNU GPL v2 or later, the GNU LGPL v2.1, or even the Expat license or the 3-clause BSD license...). Anton, do you have any contact with ParMETIS copyright holders? -- http://www.inventati.org/frx/frx-gpg-key-transition-2010.txt New GnuPG key, see the transition document! ..................................................... Francesco Poli . GnuPG key fpr == CA01 1147 9CD2 EFDF FB82 3925 3E1C 27E1 1F69 BFFE
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