Bug 154821 - Function lsim don't work
Function lsim don't work
Status: CLOSED RAWHIDE
Product: Fedora
Classification: Fedora
Component: octave (Show other bugs)
3
i686 Linux
medium Severity high
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Assigned To: Ivana Varekova
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2005-04-14 09:48 EDT by CC_ETSII_ULL
Modified: 2007-11-30 17:11 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2005-05-05 04:00:45 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description CC_ETSII_ULL 2005-04-14 09:48:24 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Description of problem:

When I run this script don't work, the process octave remain congeaded.
The process octave consumes CPU and it is disappointed.

num=2;
denum=[1 1];
sys1=tf(num, denum, 0);
t=[1:1:300];
u=ones(300,1);
y1=lsim(sys1,u,t);
                                                                                                                             
The computer load goes up:

                                                                                                                             PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
7043 root      25   0 33840  19m 4648 R **99.5**  8.0   0:31.84 octave






Version-Release number of selected component (if applicable):
octave-2.1.57-7

How reproducible:
Always

Steps to Reproduce:
1. Install octave:
   apt-get install octave
2. Create the script test.m:

num=2;
denum=[1 1];
sys1=tf(num, denum, 0);
t=[1:1:300];
u=ones(300,1);
y1=lsim(sys1,u,t);

3. Run octave
4. Run the script: 
   octave:1> test


Actual Results:  The process octave consumes CPU and it is disappointed.
If you run top:
                                                                                                                             
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 7043 root      25   0 33840  19m 4648 R 99.5  8.0   0:31.84 octave


Expected Results:  vector y1 get the values of the function lsim

Additional info:

some problems with blas or lapack, libf2c packages???
Comment 1 CC_ETSII_ULL 2005-04-14 11:14:14 EDT
 I replace the library lapack-3.0-25 for lapack-3.0-14. I copy from a redhat 7.3
 /usr/lib/lapack* to my directory. 
       !!! And the lsim function in octave runs fine. !!!

  So i think that lapack-3.0.25 dont work fine.
Comment 2 Ivana Varekova 2005-05-05 04:00:45 EDT
This is lapack problem. This problem is fixed in the latest fc3 lapack version
(lapack-3.0-26.fc3).
Ivana Varekova

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