[sage-devel] Re: let's make FriCAS optional

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Re: [sage-devel] Is trac down?

On Tuesday, September 26, 2017 at 1:56:39 PM UTC-7, mforets wrote: > > > > El martes, 26 de septiembre de 2017, 22:38:23 (UTC+2), Samuel Lelievre > escribió: >> >> Tue2017-09-26 10:29:17 UTC, Maarten Derickx: >> > Seems to be back up again. >> >> Not sure if it's related but when I click on the

Re: [sage-devel] Is trac down?

Tue2017-09-26 10:29:17 UTC, Maarten Derickx: > Seems to be back up again. Not sure if it's related but when I click on the branch at https://trac.sagemath.org/ticket/21944 I get the following error: Internal Server Error The server encountered an internal error or misconfiguration and was

Re: [sage-devel] let's make FriCAS optional

On Tue, Sep 26, 2017 at 10:06 AM, 'Martin R' via sage-devel wrote: > Dear all, > > I would like to propose to make the package FriCAS optional. FriCAS > provides some functionality which is otherwise either mostly missing (e.g., > guessing formulas, lazy

[sage-devel] Re: let's make FriCAS optional

Tue 2017-09-26 14:06:36 UTC, Martin R: > I would like to propose to make the package FriCAS optional. +1 -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

The dense multicore examples will take months to run in Flint, since we haven't written the code yet! :-) But your explanation about the cost of conversion in the sparse case certainly more than accounts for overall difference in performance. Giac also has a symbolic front end, too, which

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

Now that you have given the precise conditions, I will check if they are equivalent to whats in the smp code. They do look like what I was aiming for. As for caching the last entry, that code is still in there in a thread-safe way. This optimisation had no effect on the timings when the

[sage-devel] let's make FriCAS optional

Dear all, I would like to propose to make the package FriCAS optional. FriCAS provides some functionality which is otherwise either mostly missing (e.g., guessing formulas, lazy powerseries), or not as complete as might be desirable (e.g., symbolic integration, solving differential

Re: [sage-devel] Re: changelogs missing in http://www.sagemath.org/changelogs/index.html

On Tue, Sep 26, 2017 at 2:15 AM Eric Gourgoulhon wrote: > Yes it's a pity. A big project like Sage should have a changelog at each > new release. My understanding is that > > 1/ the automated script generating the raw changelog from the git logs was > lost somehow (during

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

Le mardi 26 septembre 2017 10:43:10 UTC+2, Bill Hart a écrit : > > We used to do this, and Daniel noticed that it wasn't really threadsafe. > It would be in my implementation, but inserting requires sometimes memory allocation and it seems to slow down too much. Anyway, as explained earlier,

Re: [sage-devel] Is trac down?

Seems to be back up again. On Tuesday, 26 September 2017 12:13:38 UTC+2, Jeroen Demeyer wrote: > > On 2017-09-26 12:10, Maarten Derickx wrote: > > I can't seem to reach trac.sagemath.org , the page seems to take > forever > > to load. Do other people have this problem as wel? > > Me too. > >

Re: [sage-devel] Is trac down?

On 2017-09-26 12:10, Maarten Derickx wrote: I can't seem to reach trac.sagemath.org , the page seems to take forever to load. Do other people have this problem as wel? Me too. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from

[sage-devel] Is trac down?

I can't seem to reach trac.sagemath.org , the page seems to take forever to load. Do other people have this problem as wel? Thanks, Maarten -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails

[sage-devel] Re: changelogs missing in http://www.sagemath.org/changelogs/index.html

Yes it's a pity. A big project like Sage should have a changelog at each new release. My understanding is that 1/ the automated script generating the raw changelog from the git logs was lost somehow (during some migration of server?) 2/ it requires some volunteer to maintain such a file

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

We used to do this, and Daniel noticed that it wasn't really threadsafe. I don't know the current status of this. At some point he said it didn't make any difference after he got the delayed insertion working. I didn't check carefully, but maybe he stores it in the final heap location now. But

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

Roman Pearce said he would put up some code to explain this. (The conditions Daniel uses are quite complex in comparison.) I therefore think that it's ok to quote the following from correspondence with Roman (since I put up my blog): [The idea is based on ] "Ellis Horowitz, A Sorting Algorithm

[sage-devel] Re: Blog post on parallel multivariate arithmetic : comparing all the things!

I found a way to get better timings by caching the index of the insertion chain of the previous monomial. But now multi-threaded execution is slower than 1 thread execution most certainly because of locks during insertion... I will probably force 1 thread sparse multiplication. -- You