[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
Presumably this is due to #19883 There isn't really any problem here, though. If you implement your own version of malloc then, in some implementations, you'll need about as much virtual memory as ram to do the accounting. It just uses your 128TB of virtual memory space. On a related note, 'u

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Nils Bruin
On Monday, March 28, 2016 at 12:35:41 AM UTC-7, Volker Braun wrote: > > Presumably this is due to #19883 > > There isn't really any problem here, though. If you implement your own > version of malloc then, in some implementations, you'll need about as much > virtual memory as ram to do the accoun

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Andrey Novoseltsev
On Monday, 28 March 2016 09:54:34 UTC-6, Nils Bruin wrote: > > On Monday, March 28, 2016 at 12:35:41 AM UTC-7, Volker Braun wrote: >> >> Presumably this is due to #19883 >> >> There isn't really any problem here, though. If you implement your own >> version of malloc then, in some implementations,

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
On Monday, March 28, 2016 at 5:54:34 PM UTC+2, Nils Bruin wrote: > > It's a simple one to set, though, and in many contexts it protects > against silly memory errors (e.g., on a multi-user machine > But it doesn't help when you have multiple processes, as its per-process limit only. > Perha

Re: [sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread William Stein
On Mon, Mar 28, 2016 at 10:15 AM, Volker Braun wrote: > On Monday, March 28, 2016 at 5:54:34 PM UTC+2, Nils Bruin wrote: >> >> It's a simple one to set, though, and in many contexts it protects against >> silly memory errors (e.g., on a multi-user machine > > > But it doesn't help when you have mu

Re: [sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
On Monday, March 28, 2016 at 8:16:36 PM UTC+2, William wrote: > > Another very common thing to ulimit is the number of processes. > e.g., the default I think on Ubuntu is maybe 1000. > Yes, and 1000 * RLIMIT_AS is almost always enough to make things very slw... I'm really sad to see that g

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Vincent Delecroix
Hello, I got problems building the doc for "knots" (see attached log obtained without parallel build). I am alone in that case? Vincent On 28/03/16 12:16, Volker Braun wrote: As always, you can get the latest beta version from the "develop" git branch. Alternatively, the self-contained sourc

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Volker Braun
I take it you haev CPLEX installed... On Monday, March 28, 2016 at 11:20:01 PM UTC+2, vdelecroix wrote: > > Hello, > > I got problems building the doc for "knots" (see attached log obtained > without parallel build). I am alone in that case? > > Vincent > > On 28/03/16 12:16, Volker Braun wro

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Vincent Delecroix
Yes I do. I see. Having plot code that is sensitive to the LP solver is bad. Is there already a ticket opened? On 28/03/16 19:19, Volker Braun wrote: I take it you haev CPLEX installed... On Monday, March 28, 2016 at 11:20:01 PM UTC+2, vdelecroix wrote: Hello, I got problems building the d

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Vincent Delecroix
Indeed, minimal failing example sage: L = Link([[2,1,4,5], [5,6,7,3], [6,4,1,9], [9,2,3,7]]) sage: L.plot() Traceback (most recent call last): ... MIPSolverException: 'CPLEX: The primal has no feasible solution' On 28/03/16 19:29, Vincent Delecroix wrote: Yes I do. I see. Having plot code that

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Vincent Delecroix
#20315 On 28/03/16 19:31, Vincent Delecroix wrote: Indeed, minimal failing example sage: L = Link([[2,1,4,5], [5,6,7,3], [6,4,1,9], [9,2,3,7]]) sage: L.plot() Traceback (most recent call last): ... MIPSolverException: 'CPLEX: The primal has no feasible solution' On 28/03/16 19:29, Vincent Dele

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Dima Pasechnik
On Monday, March 28, 2016 at 11:29:08 PM UTC+1, vdelecroix wrote: > > Yes I do. I see. Having plot code that is sensitive to the LP solver is > bad. Is there already a ticket opened? > I always maintained that the design when installation of a solver makes it default is bad, but to no avail..

[sage-devel] Re: [sage-release] Sage 7.2.beta1 released

2016-03-28 Thread Vincent Delecroix
On 28/03/16 20:12, Dima Pasechnik wrote: On Monday, March 28, 2016 at 11:29:08 PM UTC+1, vdelecroix wrote: Yes I do. I see. Having plot code that is sensitive to the LP solver is bad. Is there already a ticket opened? I always maintained that the design when installation of a solver makes