[sage-support] Re: Is this a memory problem?

2007-12-10 Thread mabshoff
On Dec 10, 6:46 am, Mike Hansen [EMAIL PROTECTED] wrote: In case you're curious, here are some timings for higher powers along with memory usage. sage: s = SFASchur(QQ) sage: f = s([2,1]) sage: get_memory_usage() 515.17578125 sage: time a = f^10 CPU times: user 6.64 s, sys: 0.03 s,

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread William Stein
On Dec 9, 2007 8:01 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I'm trying to use the combinatorics features in Sage to do some Chern class calculations. When I run the commands below, I get exceptions that I don't know how to interpret. The same calculation in Maple using John

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread mabshoff
On Dec 10, 5:20 am, William Stein [EMAIL PROTECTED] wrote: On Dec 9, 2007 8:01 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I'm trying to use the combinatorics features in Sage to do some Chern class calculations. When I run the commands below, I get exceptions that I don't know

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread Mike Hansen
Hello, The actual issue was that I forgot to covert symmetrica's LONGINT type ( 22 ) over to the correct Sage type. I hadn't actually tested it with calculations that got up to numbers that big. I made a ticket for this and posted a patch: http://sagetrac.org/sage_trac/ticket/1445 It will be

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread BFJ
That was fast! Thanks for looking into the problem. I'll be doing more extensive calculations over the next couple of weeks (I'm porting some Maple code). I'll let you know if I run into any other problems. I'm excited about the prospect of a 17-fold performance increase. Thanks very much, --

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread William Stein
On Dec 9, 2007 8:44 PM, BFJ [EMAIL PROTECTED] wrote: That was fast! Thanks for looking into the problem. I'll be doing more extensive calculations over the next couple of weeks (I'm porting some Maple code). I'll let you know if I run into any other problems. I'm excited about the prospect

[sage-support] Re: Is this a memory problem?

2007-12-09 Thread Mike Hansen
In case you're curious, here are some timings for higher powers along with memory usage. sage: s = SFASchur(QQ) sage: f = s([2,1]) sage: get_memory_usage() 515.17578125 sage: time a = f^10 CPU times: user 6.64 s, sys: 0.03 s, total: 6.67 s Wall time: 6.74 sage: get_memory_usage() 526.26171875