On Thu, Jul 8, 2021 at 6:06 AM 'Nasser M. Abbasi' via FriCAS -
computer algebra system <fricas-devel@googlegroups.com> wrote:
>
> I noticed that Fricas 1.3.7 intergate (called via sagemath 9.3), is more than
> twice as fast in the independent CAS integration test than integrate in 1.3.6
> (via sagemath 9.0), all on the same PC. Using Linux on a VBox with same
> memory.
>
> I do not know if this speed up came from improvement in the sagemath to
> Fricas interface, or improvement in Fricas 1.3.7 integration code itself or
> some other parts of Fricas.
On top of possible Fricas code improvements,
since Sage 9.0, ECL, the Lisp compiler used to build Fricas got
updated. This might be a reason,
as well as options used to build the software (e.g. in Sage 9.3 more
capabilities of your CPU might be used).
>
> Any one noticed this also and could may shed some light on this? And why is
> it much faster now? I was just wondering what the cause could be. (It is
> ofcourse, very good that integrate command is much faster now).
>
> I am sure it will be even faster, if I run Fricas directly on Linux, without
> using sagemath interface, but I do not know how to do this, and it is easier
> to run it via sagemath so far.
You can start Sage shell in terminal by running
sage -sh
and then you can start Fricas:
$ ./sage -sh
Starting subshell with Sage environment variables set. Don't forget
to exit when you are done. Beware:
* Do not do anything with other copies of Sage on your system.
* Do not use this for installing Sage packages using "sage -i" or for
running "make" at Sage's root directory. These should be done
outside the Sage shell.
Bypassing shell configuration files...
Note: SAGE_ROOT=/mnt/opt/Sage/sage-dev
(sage-sh) dima@hilbert:sage-dev$ fri
fribidi fricas
(sage-sh) dima@hilbert:sage-dev$ fricas
;;; Loading #P"/usr/lib64/ecl-21.2.1/cmp.fas"
Starting interpsys
spad = "/mnt/opt/Sage/sage-dev/local/lib/fricas/target/x86_64-pc-linux-gnu"
Re-reading compress.daase Re-reading interp.daase
FriCAS initialization: interpreter
FriCAS initialization: database
FriCAS initialization: constructors
FriCAS initialization: history
FriCAS Computer Algebra System
Version: FriCAS 1.3.7
Timestamp: Wed Jul 7 09:55:44 BST 2021
-----------------------------------------------------------------------------
Issue )copyright to view copyright notices.
Issue )summary for a summary of useful system commands.
Issue )quit to leave FriCAS and return to shell.
-----------------------------------------------------------------------------
Re-reading compress.daase Re-reading interp.daase
Re-reading operation.daase
Re-reading browse.daase
Re-reading category.daase
Initial getdatabase
preloading
/mnt/opt/Sage/sage-dev/local/lib/fricas/target/x86_64-pc-linux-gnu/algebra/FR.fas..loaded.
...
...
preloading
/mnt/opt/Sage/sage-dev/local/lib/fricas/target/x86_64-pc-linux-gnu/algebra/OUTFORM.fas..loaded.
before fricas-restart
openServer result 0
FriCAS Computer Algebra System
Version: FriCAS 1.3.7
Timestamp: Wed Jul 7 09:55:44 BST 2021
-----------------------------------------------------------------------------
Issue )copyright to view copyright notices.
Issue )summary for a summary of useful system commands.
Issue )quit to leave FriCAS and return to shell.
-----------------------------------------------------------------------------
(1) ->
>
> This is the current version information for Fricas I am using
>
> >fricas
> Checking for foreign routines
> FRICAS="/usr/local/lib/fricas/target/x86_64-linux-gnu"
> spad-lib="/usr/local/lib/fricas/target/x86_64-linux-gnu/lib/libspad.so"
> foreign routines found
> openServer result 0
> FriCAS Computer Algebra System
> Version: FriCAS 1.3.7
>
> with 1.3.6, average time to do an integral was 2.84 seconds. With 1.3.7 it is
> now 1.38 seconds.
>
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