Re: [sage-devel] Re: openBlas compile error

[Andy Howell]

David,

I was able to build using git trac to pull in 
https://trac.sagemath.org/ticket/23272


That built against 81.rc0, using openBlas 0.2.20. Built fine. It was a 
good exercise to start figuring out git-trac and sage development.


Thanks for your help,

Andy



On 11/15/2017 03:26 PM, David Lowry wrote:
This has been a problem for a bit now. In another thread 
 
from the summer, I noted that a common workaround is to set


|
exportOPENBLAS_CONFIGURE="TARGET=ATOM"
|

I don't quite know about how the updates to openBlas might affect this 
from now on, though.


On Thursday, November 9, 2017 at 6:45:04 PM UTC, Andy Howell wrote:

I'm running under Ubuntu 17.10, which is in a VM under under
VirtualBox.

OpenBlas is complaining that it can't work out the CPU type.
/proc/cpuinfo shows it as:

   Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz

I think that might have already been addressed with an update
version of
openBlas

https://trac.sagemath.org/ticket/23272


If someone can help with git commands to pull that into to the dev
branch I can give it a try.

I tried installing openBlas 0.2.20 dev libs from the distribution, but
it was not used in the build.

Thanks,

Andy

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Re: [sage-devel] Re: Online Sage Days

[David Lowry]

I missed the earlier comments in this thread, but I'm interested in 
principle. I wonder if the largest problem was simply visibility?

On Wednesday, November 15, 2017 at 9:03:52 PM UTC, David Roe wrote:
>
> I'd be happy to continue, but only a few people signed up on the 
> scheduling poll, then nobody else participated.  I'm guessing that part of 
> the problem is that we're getting toward the end of the semester.  For 
> people who would like to participate in principle, what are the obstacles?  
> When would a better time be?
> David
>
> On Wed, Nov 15, 2017 at 3:47 PM, saad khalid  > wrote:
>
>> Will these be continuing at all? I would love to be a part of this, 
>> especially if it were in early January or something. 
>>
>> On Saturday, September 9, 2017 at 4:05:02 AM UTC-5, David Roe wrote:
>>>
>>> Hi everyone,
>>> I'd like to organize some online Sage Days, where people gather on 
>>> zulip.sagemath.org and work on Sage together.  The two things to be 
>>> decided are 
>>> 1. What topics should we focus on?
>>> 2. What days/times work for the most people?
>>> Some of these may transition into in-person working groups (the IMA has 
>>> funding for small groups to meet there over this coming year to work on 
>>> projects)
>>>
>>> I'll send out a survey for the scheduling part, but I wanted to solicit 
>>> suggestions for topics first.  Some ideas:
>>>
>>> * Python 3 Compatibility
>>> * Work on documentation tickets, discuss overall documentation 
>>> structure, make docbuilding more robust
>>> * Sage Infrastructure (improving the patchbot; common login for trac, 
>>> github, google, zulip using OAuth; investigate options for in-line code 
>>> review)
>>> * Sage's packaging and build system
>>> * Infrastructure for more random testing, speed regression testing
>>> * Interacts and interactive mathematics
>>> * Comparing Magma and Sage
>>> * Additional interfaces (Macaulay2)
>>>
>>> And on the mathematical side:
>>> * p-adics
>>> * function fields
>>> * linear algebra
>>> * modular forms
>>> * representation theory
>>> * polyhedral geometry
>>> * Coxeter group/root systems and braid groups
>>> * Schubert polynomials
>>>
>>> If you'd like me to include other topics in the survey, chime in!
>>> David
>>>
>>
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>

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[sage-devel] Re: openBlas compile error

[David Lowry]

This has been a problem for a bit now. In another thread 
 
from the summer, I noted that a common workaround is to set

export OPENBLAS_CONFIGURE="TARGET=ATOM"

I don't quite know about how the updates to openBlas might affect this from 
now on, though.

On Thursday, November 9, 2017 at 6:45:04 PM UTC, Andy Howell wrote:
>
> I'm running under Ubuntu 17.10, which is in a VM under under VirtualBox. 
>
> OpenBlas is complaining that it can't work out the CPU type. 
> /proc/cpuinfo shows it as: 
>
>   Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz 
>
> I think that might have already been addressed with an update version of 
> openBlas 
>
> https://trac.sagemath.org/ticket/23272 
>
> If someone can help with git commands to pull that into to the dev 
> branch I can give it a try. 
>
> I tried installing openBlas 0.2.20 dev libs from the distribution, but 
> it was not used in the build. 
>
> Thanks, 
>
> Andy 
>

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Re: [sage-devel] Re: Online Sage Days

[François Bissey]

> On 16/11/2017, at 10:24, Dima Pasechnik  wrote:
> 
> but starting at what is for me 9pm local time 

But that’s my 9am :) you don’t want me to get up at 4am (and then 
there’s the problem of the school run from 7:30am to 9am)?

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Re: [sage-devel] Re: Online Sage Days

[Dima Pasechnik]

For me the chosen timing is a problem.
If you started 4-5 hours earlier it would be feasible, but starting at what is 
for me 9pm local time would not work.

Dima

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Re: [sage-devel] Re: Online Sage Days

[François Bissey]

I kind of missed the beginning because of a zulip problem (it was disconnected 
after
an OS update and didn’t notice). Also for me time zone :P 
Nevertheless me and Frederic Chapoton had some private email exchange about 
starting 
sage with python3.
Short answer: yes it does.
Long answer: his experimental branch enables to build a starting sage with 
python3.6
and then you have a host of new problems once you start something non-trivial 
(darn unicode).
The branch also breaks starting and building sage documentation in two places.

François

> On 16/11/2017, at 10:03, David Roe  wrote:
> 
> I'd be happy to continue, but only a few people signed up on the scheduling 
> poll, then nobody else participated.  I'm guessing that part of the problem 
> is that we're getting toward the end of the semester.  For people who would 
> like to participate in principle, what are the obstacles?  When would a 
> better time be?
> David
> 
> On Wed, Nov 15, 2017 at 3:47 PM, saad khalid  wrote:
> Will these be continuing at all? I would love to be a part of this, 
> especially if it were in early January or something. 
> 
> On Saturday, September 9, 2017 at 4:05:02 AM UTC-5, David Roe wrote:
> Hi everyone,
> I'd like to organize some online Sage Days, where people gather on 
> zulip.sagemath.org and work on Sage together.  The two things to be decided 
> are 
> 1. What topics should we focus on?
> 2. What days/times work for the most people?
> Some of these may transition into in-person working groups (the IMA has 
> funding for small groups to meet there over this coming year to work on 
> projects)
> 
> I'll send out a survey for the scheduling part, but I wanted to solicit 
> suggestions for topics first.  Some ideas:
> 
> * Python 3 Compatibility
> * Work on documentation tickets, discuss overall documentation structure, 
> make docbuilding more robust
> * Sage Infrastructure (improving the patchbot; common login for trac, github, 
> google, zulip using OAuth; investigate options for in-line code review)
> * Sage's packaging and build system
> * Infrastructure for more random testing, speed regression testing
> * Interacts and interactive mathematics
> * Comparing Magma and Sage
> * Additional interfaces (Macaulay2)
> 
> And on the mathematical side:
> * p-adics
> * function fields
> * linear algebra
> * modular forms
> * representation theory
> * polyhedral geometry
> * Coxeter group/root systems and braid groups
> * Schubert polynomials
> 
> If you'd like me to include other topics in the survey, chime in!
> David
> 
> 
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Re: [sage-devel] Re: Online Sage Days

[David Roe]

I'd be happy to continue, but only a few people signed up on the scheduling
poll, then nobody else participated.  I'm guessing that part of the problem
is that we're getting toward the end of the semester.  For people who would
like to participate in principle, what are the obstacles?  When would a
better time be?
David

On Wed, Nov 15, 2017 at 3:47 PM, saad khalid  wrote:

> Will these be continuing at all? I would love to be a part of this,
> especially if it were in early January or something.
>
> On Saturday, September 9, 2017 at 4:05:02 AM UTC-5, David Roe wrote:
>>
>> Hi everyone,
>> I'd like to organize some online Sage Days, where people gather on
>> zulip.sagemath.org and work on Sage together.  The two things to be
>> decided are
>> 1. What topics should we focus on?
>> 2. What days/times work for the most people?
>> Some of these may transition into in-person working groups (the IMA has
>> funding for small groups to meet there over this coming year to work on
>> projects)
>>
>> I'll send out a survey for the scheduling part, but I wanted to solicit
>> suggestions for topics first.  Some ideas:
>>
>> * Python 3 Compatibility
>> * Work on documentation tickets, discuss overall documentation structure,
>> make docbuilding more robust
>> * Sage Infrastructure (improving the patchbot; common login for trac,
>> github, google, zulip using OAuth; investigate options for in-line code
>> review)
>> * Sage's packaging and build system
>> * Infrastructure for more random testing, speed regression testing
>> * Interacts and interactive mathematics
>> * Comparing Magma and Sage
>> * Additional interfaces (Macaulay2)
>>
>> And on the mathematical side:
>> * p-adics
>> * function fields
>> * linear algebra
>> * modular forms
>> * representation theory
>> * polyhedral geometry
>> * Coxeter group/root systems and braid groups
>> * Schubert polynomials
>>
>> If you'd like me to include other topics in the survey, chime in!
>> David
>>
>
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[sage-devel] "SageMath will replace Maple"

[William A Stein]

One tiny step toward our mission statement...

-- Forwarded message --
From: Jori Mäntysalo
Date: Wed, Nov 15, 2017 at 1:29 AM
Subject: Sage and supercomputer


Might be of interest to know. Taito is the second biggest computer in
Finland, 17704 computing cores in total.

--
Jori Mäntysalo

-- Forwarded message --
Date: Wed, 15 Nov 2017 11:13:51 +0200 (EET)
Subject: [taito-users] SageMath will replace Maple on Taito at December 1, 2017

Dear Taito user,

There will be changes in the available mathematics software on Taito.
The usage of Maple will end at November 30, 2017 and it
will be removed from the CSC's scientific software collection. The open source
software SageMath (http://www.sagemath.org/index.html,
https://research.csc.fi/-/sagemath) will replace Maple.


-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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Re: [sage-devel] ask.sagemath

[Dima Pasechnik]

On Wednesday, November 15, 2017 at 1:36:17 PM UTC, Erik Bray wrote:
>
> On Wed, Nov 15, 2017 at 2:27 PM, Erik Bray  > wrote: 
> > On Tue, Nov 14, 2017 at 4:21 PM, kcrisman  > wrote: 
> >> I'll admit that there seem to be some load bugs.  Even in some very 
> cursory 
> >> looking at and doing edits on recent questions I get callback popups. 
> >> 
> >> But yes, in principle once Erik is approved for an answer it shouldn't 
> be a 
> >> problem.  Perhaps one of his posts was not approved, hence disappeared 
> from 
> >> the review queue, and now this problem occurs.  If you were ever 
> blocked as 
> >> a spammer that might (?) happen, though I don't see why that would have 
> >> happened. 
> > 
> > I'm not blocked, that's for sure.  I can make comments just fine.  I 
> > don't think I was every blocked before. 
> > 
> > Huh--I just tried posting an answer to a random question and it went 
> through. 
> > 
> > So I went back to 
> > 
> https://ask.sagemath.org/question/37644/little-doc-to-install-sage-math-on-w10/
>  
> > and edited the text of my previously saved answer, and then tried 
> > posting it and it went through. 
> > 
> > So it does sound like a bug in askbot.  Perhaps my answer was held in 
> > moderation at some point, but it refuses to post it if the text was 
> > exactly the same as before.  I haven't looked at the code for 
> > processing posted answers but there's probably something like that 
> > going on... 
>
> No that wasn't it at all actually.  I just encountered the bug again 
> and it turns out the problem is with posting answers containing links. 
> I apparently need 10 karma to be able to do that, and without it it 
> just refuses to display the answer (however, there is no message as to 
> why). 
>

your karma should be at least 21 now :-)
 

>
> However, a silly workaround is that I can post the answer without 
> links and then edit it afterwards.  It still won't create a hyperlink, 
> but I can at least put the URL in the text. 
>

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Re: [sage-devel] ask.sagemath

[Thierry]

On Wed, Nov 15, 2017 at 02:36:11PM +0100, Erik Bray wrote:
[...]
> No that wasn't it at all actually.  I just encountered the bug again
> and it turns out the problem is with posting answers containing links.
> I apparently need 10 karma to be able to do that, and without it it
> just refuses to display the answer (however, there is no message as to
> why).

This makes sense, the karma threshold to insert clickable links is 10.
What is wrong, is that you did not get any message explaining the reason.

Ciao,
Thierry

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[sage-devel] ODK workshop "subgroups of Lie groups" - feb 19th to march 04th 2018

[Vincent Delecroix]

Dear all,

We are writing to announce the upcoming

  PARI-GAP-Sage Days on "Subgroups and lattices of Lie groups"
  February 19th - March 4th
  funded by OpenDreamKit

The aim is to bring together experts in the area (Lie groups / algebras,
(real and complex) hyperbolic geometry, symmetric spaces, lattices, 
Coxeter groups, automorphic forms, ...) and software developers (Sage, 
GAP, PARI/GP, SnapPy, Magma,...) that can work to improve the 
functionality of Sage or other open source packages as well as the 
interaction among them.


The workshop will be held at Faber Residency in Olot 
(www.faberresidency.com). Sage Days 84 was held there in February-March 
2017 and we would like to repeat the experience.


Note that although the workshop will run for two weeks, it is possible 
to attend only part of the workshop. Also, some funding for travel and 
lodging is available if needed.


The conditions of the Faber residencies require that some of the
participants propose activities mainly aimed at high school students, 
that can be carried out in English, Catalan or Spanish. Please let us 
know if you have any concerns about this.


If you are interested in attending, please read the details at

https://wiki.sagemath.org/days93

and email the organizers specifying whether you would be attending for 
the whole duration of the workshop (and otherwise specifying which 
period you would attend).


Also, please forward this to possibly interested researchers (including 
Ph.D. students) in the area.


Best regards,
Marc Masdeu and Vincent Delecroix

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Re: [sage-devel] ask.sagemath

[Erik Bray]

On Wed, Nov 15, 2017 at 2:27 PM, Erik Bray  wrote:
> On Tue, Nov 14, 2017 at 4:21 PM, kcrisman  wrote:
>> I'll admit that there seem to be some load bugs.  Even in some very cursory
>> looking at and doing edits on recent questions I get callback popups.
>>
>> But yes, in principle once Erik is approved for an answer it shouldn't be a
>> problem.  Perhaps one of his posts was not approved, hence disappeared from
>> the review queue, and now this problem occurs.  If you were ever blocked as
>> a spammer that might (?) happen, though I don't see why that would have
>> happened.
>
> I'm not blocked, that's for sure.  I can make comments just fine.  I
> don't think I was every blocked before.
>
> Huh--I just tried posting an answer to a random question and it went through.
>
> So I went back to
> https://ask.sagemath.org/question/37644/little-doc-to-install-sage-math-on-w10/
> and edited the text of my previously saved answer, and then tried
> posting it and it went through.
>
> So it does sound like a bug in askbot.  Perhaps my answer was held in
> moderation at some point, but it refuses to post it if the text was
> exactly the same as before.  I haven't looked at the code for
> processing posted answers but there's probably something like that
> going on...

No that wasn't it at all actually.  I just encountered the bug again
and it turns out the problem is with posting answers containing links.
I apparently need 10 karma to be able to do that, and without it it
just refuses to display the answer (however, there is no message as to
why).

However, a silly workaround is that I can post the answer without
links and then edit it afterwards.  It still won't create a hyperlink,
but I can at least put the URL in the text.

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Re: [sage-devel] ask.sagemath

[Erik Bray]

On Tue, Nov 14, 2017 at 4:21 PM, kcrisman  wrote:
> I'll admit that there seem to be some load bugs.  Even in some very cursory
> looking at and doing edits on recent questions I get callback popups.
>
> But yes, in principle once Erik is approved for an answer it shouldn't be a
> problem.  Perhaps one of his posts was not approved, hence disappeared from
> the review queue, and now this problem occurs.  If you were ever blocked as
> a spammer that might (?) happen, though I don't see why that would have
> happened.

I'm not blocked, that's for sure.  I can make comments just fine.  I
don't think I was every blocked before.

Huh--I just tried posting an answer to a random question and it went through.

So I went back to
https://ask.sagemath.org/question/37644/little-doc-to-install-sage-math-on-w10/
and edited the text of my previously saved answer, and then tried
posting it and it went through.

So it does sound like a bug in askbot.  Perhaps my answer was held in
moderation at some point, but it refuses to post it if the text was
exactly the same as before.  I haven't looked at the code for
processing posted answers but there's probably something like that
going on...

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[sage-combinat-devel] Fwd: SageDays@ICERM

[Travis Scrimshaw]

Cross-post from Sage-devel

On Wednesday, November 15, 2017 at 6:49:13 AM UTC-6, Travis Scrimshaw wrote:
>
> Hey all,
>Gabe Feinberg, Darij Grinberg, Ben Salisbury, and I are organizing a 
> SageDays to take place at ICERM, located in Providence, RI, USA, from 
> July 23 - 27, 2018. The SageDays will focus more on combinatorics, algebra, 
> and representation theory. The workshop is open to anyone of all 
> backgrounds and skill levels and will consist of talks, demonstrations, and 
> coding sprints.
>
> Details, including the current list of speakers, can be found here:
>
> https://icerm.brown.edu/topical_workshops/tw18-1-sage/
>
> If you have any questions, feel free to contact one of the organizers (my 
> e-mail is tcscrims via gmail.com).
>
> Best,
> Travis
>
>

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[sage-devel] SageDays@ICERM

[Travis Scrimshaw]

Hey all,
   Gabe Feinberg, Darij Grinberg, Ben Salisbury, and I are organizing a 
SageDays to take place at ICERM, located in Providence, RI, USA, from July 
23 - 27, 2018. The SageDays will focus more on combinatorics, algebra, and 
representation theory. The workshop is open to anyone of all backgrounds 
and skill levels and will consist of talks, demonstrations, and coding 
sprints.

Details, including the current list of speakers, can be found here:

https://icerm.brown.edu/topical_workshops/tw18-1-sage/

If you have any questions, feel free to contact one of the organizers (my 
e-mail is tcscrims via gmail.com).

Best,
Travis

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[sage-devel] Patchbot and its trust issues

[David Loeffler]

I'd like to request opinions on whether we should get rid of the "Trusted
Authors" check in the Sage patchbot.

At present, the patchbot won't test a ticket unless all of the names in the
Trac "Authors" field have had at least one ticket previously merged.
Presumably the intention of this is to prevent people uploading git
branches with malicious code that will hijack the patchbot servers. But the
"Authors" field is a free text field; there's nothing to stop anybody with
a trac account uploading a git branch with author set to "William Stein",
or "Mickey Mouse" for that matter. So this feature provides zero actual
security against attacks, and only serves to make life more difficult for
legitimate users -- and, worse still, it specifically targets new
contributors who we want at all costs to encourage.

So I would advocate getting rid of the "Trust" feature -- or at least
adjusting it so it runs the ticket if any of the authors are trusted
(rather than all of them). What do others here think of this idea?

(I spotted this while reviewing ticket 19169, where the authors are a group
of first-time Sage contributors from Sage Days 69 in 2015. The ticket has
been languishing in needs-review purgatory for most of the intervening 2
years, and the fact that it didn't have a green light from the patchbot
probably contributed to that.)

David

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[sage-devel] Re: Pattern matching in Sage

[Dima Pasechnik]

I would not be  too surprised if someone had written a Lisp interpreter  in 
Python, representing Lisp code as stings :-)

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