Feature #840
GINV: alex basis
Description
Let some fns form GINV be callable from CoCoALib; in ptic "alex" basis.
History
#1
Updated by John Abbott over 8 years ago
Updated by Mario has already done a quick comparison between his impl of Janet basis and that in GINV (by Gerdt and Blinkov) - GINV was much faster (sometimes even 100 times faster).
It is not clear where a recent source of GINV can be found; we will ask Gerdt directly.
It is not clear at what level fns inside GINV can be called. Is it usable as a library? (mem mgt???) Perhaps remote provcedure calls have to be effected via the human UI (create a file; make GINV run the file; get GINV answer in another file)
We hope to have a Skype meeting with Gerdt in the near future.
#2
Updated by John Abbott over 8 years ago
We shall also need a data structure in CoCoALib to represent the alex basis (or alex-GB basis). What should this structure contain?
Mario also suggested having "remote objects" which are kept inside a GINV session; and GIMV does almost all the computation.
#3
Updated by John Abbott about 8 years ago
This morning we had a Skype call: John + Mario + Werner + Vladimir Gerdt.
The main outcomes are:- Daniel Robertz has already made a Maple-GINV interface, so try asking him
- Vladimir is willing to translate emailed technical questions (from us to Blinkov), and to translate the replies (and send them by email)
- the "old" version on the GINV website is still the current version (no alex code yet)
#4
Updated by John Abbott about 8 years ago
- Status changed from New to In Progress
- % Done changed from 0 to 10
Mario has downloaded the GINV source, but has had several problems with compilation -- he has not yet succeeded in compiling it all.
We hope to look at the code together with the aim of making minimal changes so that it will compile (without warnings).