I can add to the good comments from Jan that yes, installing a bunch of stuff already present on your system may cost you extra the first time you install it, but the second time you run the install script (to get the latest FEniCS), most of the dependencies will not have changed so the script will run through very fast (HashDist keeps track for this so it's safe to run it repeatedly).
-- Anders Mon Feb 02 2015 at 9:57:15 PM skrev Jan Blechta <[email protected] >: > On Sun, 1 Feb 2015 15:27:26 -0500 > kam kammon <[email protected]> wrote: > > > I installed Fenics 1.5 with the new install script, while it has been > > successful I wonder if it is necessary to install all the > > dependencies locally while most of them are already installed system > > wide? OS is Ubuntu 14.04 64 bit. > > There are at least two reasons why it works this way: > > 1. This is a philosophy of hashdist, see > https://www.youtube.com/watch?v=wviHkzk0AkY. In short, the > goal of hashdist is to build a reproducible, portable software stack, > fully specified by a short, human-readable receipt. > > 2. It will possibly make the installation more bullet-proof for most of > the new users, maybe even more robust than apt-got binaries. > > BTW, you can get a binary from Debian/Ubuntu repository if you are > sudoer on the machine. This method reuses some other binaries on the > system but tends to break once you install some custom build of any > dependency to /usr, /usr/local prefixes. > > > > > Thanks. > > > > P.S. Is Dorsal retired? > > Yes. > > Jan > > > > _______________________________________________ > fenics mailing list > [email protected] > http://fenicsproject.org/mailman/listinfo/fenics >
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