473,324 Members | 2,214 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,324 software developers and data experts.

Trouble with numpy-0.9.4 and numpy-0.9.5

Hello,

I use the Python Numeric package extensively, and had been an
avid user of the "old" scipy. In my view, both pieces of software
are truly first rate, and have greatly improved my productivity in
the area of scientific analysis. Thus, I was excited to make the
transition to the new scipy core (numpy).

Unfortunately, I am experiencing a problem that I cannot sort
out. I am running Python 2.4.2 on a Debian box (V3.1), using
gcc version 3.3.5, and ATLAS, BLAS, and LAPACK libraries
built from scratch. When building numpy everything seems to
go AOK. But trouble soon follows.

As a sanity check, I run the diagnostic tests that come as
part of the numpy package:

from numpy import *
from scipy import *

test(level=N) # N can vary from 1 to 10. :
No matter which test I run, Python crashes hard with only
the following output: "Floating exception".

I thought perhaps numpy would still work Ok, even though
it seemed to have failed this "sanity" test.

Thus, I tried using the numpy.linalg.eig functionality, and
upon calling numpy.linalg.eig I get the same behavior:
Python crashes hard with the same output "Floating
exception".

Can someone help me sort out what might be wrong?
Perhaps I have overlooked a crucial step in the build/
install of numpy.
Thanks very much,
Daran

Mar 1 '06 #1
1 1488
drife wrote:
Hello,

I use the Python Numeric package extensively, and had been an
avid user of the "old" scipy. In my view, both pieces of software
are truly first rate, and have greatly improved my productivity in
the area of scientific analysis. Thus, I was excited to make the
transition to the new scipy core (numpy).

Unfortunately, I am experiencing a problem that I cannot sort
out. I am running Python 2.4.2 on a Debian box (V3.1), using
gcc version 3.3.5, and ATLAS, BLAS, and LAPACK libraries
built from scratch. When building numpy everything seems to
go AOK. But trouble soon follows.

As a sanity check, I run the diagnostic tests that come as
part of the numpy package:

from numpy import *
from scipy import *

test(level=N) # N can vary from 1 to 10. :
No matter which test I run, Python crashes hard with only
the following output: "Floating exception".


This could be related to the Debian glibc bug that has been discussed
before. Aparently the Debian version of glibc had some issues with
SSE. This is the same behavior experienced by others on the Debian
platform. There is a patch, but I'm not sure what it is.

See, for example:

http://aspn.activestate.com/ASPN/Mai...ussion/2207861

Come over to the nu**************@lists.sourceforge.net and/or
sc********@scipy.net

lists for more help.

-Travis

Mar 1 '06 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

2
by: James | last post by:
Hi I am having some trouble getting a asp page to load. Im a noob to the asp side. I have followed knowledege base Article 301305. I am running 2000 adv, IIS 5.0 I have the following...
4
by: Jacek Dziedzic | last post by:
Hi! First of all, I hope my problem is not too loosely tied to the "standard C++" that is the topic of this group. I have some code that exhibits a strange behaviour: on one computer, where I...
0
by: Paul C | last post by:
Hello, everybody. I am having trouble running some of the VS.NET samples, specifically the CarSelector web app, which is very simple. The symptom is that the web controls (drop down listboxes and...
0
by: Alexandre Jaquet | last post by:
Hi does anybody know how to solve my trouble, when I try to create a MS Office project I always got trouble. I can't create office project when I try to create one vs.net restart ... :s
2
by: Jeff | last post by:
/* -------------------------------------------------------------------------- Hello, I was experimenting with class templates and specializing member functions and came across a simple problem...
1
by: Jim Bancroft | last post by:
Hi everyone, I'm running into a problem with my ASP.Net application. I've just created a new aspx page which uses some new components of mine that inherit from ServicedComponent and are...
6
by: Daniel Walzenbach | last post by:
Hi, I have a web application which sometimes throws an “out of memory” exception. To get an idea what happens I traced some values using performance monitor and got the following values (for...
3
by: Olivier BESSON | last post by:
Hello, I have a web service of my own on a server (vb.net). I must declare it with SoapRpcMethod to be used with JAVA. This is a simple exemple method of my vb source : ...
2
by: JLupear | last post by:
I am having trouble with my code again, I had prepared a question and the code to upload, however I am having trouble posting it, are there limits to the amount of lines you can post? I split it...
0
by: mrchatgroup | last post by:
news from http://www.mrchat.net/myblog/myblog/small-accidents-mean-big-trouble-for-supercollider.html Small Accidents Mean Big Trouble for Supercollider Image Scientists expect startup...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
1
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
1
by: Shllpp 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.