Hi,
In Linux how to find out what will be the stack size allocated for a process?
Actually i have to fork n number of processess, and will call exec. I will be execing an executable which is already multithreaded and each thread size is defined. My doubt is how to know if the size of the... (2 Replies)
Hi everybody,
I want to know if there is any posibility to find out - on an AIX system - which are the the users who consume most space or at least a posibility to obtain a list with all the users and how much space are they consuming ?
Trying to use du command was useless. Any idea?... (5 Replies)
I'm using bash on cygwin/windows.
I'm trying to use find and exclude the directory /cygdrive/c/System\ Volume\ Information. When I try to use the command below I get the error "rm: cannot remove `/cygdrive/c/System Volume Information': Is a directory.
Can someone tell me what I am doing... (3 Replies)
I am trying to find a specific set of characters in a long file. I only want to find the characters in column 265 for 4 bytes.
Is there a search for that? I tried cut but couldn't get it to work.
Ex. I want to find '9999' in column 265 for 4 bytes. If it is in there, I want it to print... (12 Replies)
I wanted to know how to find the memory taken by a process using top command. The output of the top command is as follows as an example:
Mem: 13333364k total, 13238904k used, 94460k free, 623640k buffers
Swap: 25165816k total, 112k used, 25165704k free, 4572904k cached
PID USER ... (6 Replies)
Hi,
Below is my input file:
Long list of significant figure
1.757E-4
7.51E-3
5.634E-5
.
.
.
Desired output file:
0.0001757
0.00751
0.00005634
.
.
. (10 Replies)
Discussion started by: perl_beginner
10 Replies
LEARN ABOUT REDHAT
claqp2
CLAQP2(l) ) CLAQP2(l)
NAME
CLAQP2 - compute a QR factorization with column pivoting of the block A(OFFSET+1:M,1:N)
SYNOPSIS
SUBROUTINE CLAQP2( M, N, OFFSET, A, LDA, JPVT, TAU, VN1, VN2, WORK )
INTEGER LDA, M, N, OFFSET
INTEGER JPVT( * )
REAL VN1( * ), VN2( * )
COMPLEX A( LDA, * ), TAU( * ), WORK( * )
PURPOSE
CLAQP2 computes a QR factorization with column pivoting of the block A(OFFSET+1:M,1:N). The block A(1:OFFSET,1:N) is accordingly pivoted,
but not factorized.
ARGUMENTS
M (input) INTEGER
The number of rows of the matrix A. M >= 0.
N (input) INTEGER
The number of columns of the matrix A. N >= 0.
OFFSET (input) INTEGER
The number of rows of the matrix A that must be pivoted but no factorized. OFFSET >= 0.
A (input/output) COMPLEX array, dimension (LDA,N)
On entry, the M-by-N matrix A. On exit, the upper triangle of block A(OFFSET+1:M,1:N) is the triangular factor obtained; the ele-
ments in block A(OFFSET+1:M,1:N) below the diagonal, together with the array TAU, represent the orthogonal matrix Q as a product of
elementary reflectors. Block A(1:OFFSET,1:N) has been accordingly pivoted, but no factorized.
LDA (input) INTEGER
The leading dimension of the array A. LDA >= max(1,M).
JPVT (input/output) INTEGER array, dimension (N)
On entry, if JPVT(i) .ne. 0, the i-th column of A is permuted to the front of A*P (a leading column); if JPVT(i) = 0, the i-th col-
umn of A is a free column. On exit, if JPVT(i) = k, then the i-th column of A*P was the k-th column of A.
TAU (output) COMPLEX array, dimension (min(M,N))
The scalar factors of the elementary reflectors.
VN1 (input/output) REAL array, dimension (N)
The vector with the partial column norms.
VN2 (input/output) REAL array, dimension (N)
The vector with the exact column norms.
WORK (workspace) COMPLEX array, dimension (N)
FURTHER DETAILS
Based on contributions by
G. Quintana-Orti, Depto. de Informatica, Universidad Jaime I, Spain
X. Sun, Computer Science Dept., Duke University, USA
LAPACK version 3.0 15 June 2000 CLAQP2(l)