|
Last change
on this file since 5415 was
465,
checked in by lmdzadmin, 21 years ago
|
|
Initial insert
LF
|
-
Property svn:eol-style set to
native
-
Property svn:executable set to
*
-
Property svn:keywords set to
Author Date Id Revision
|
|
File size:
712 bytes
|
| Line | |
|---|
| 1 | subroutine ran0_vec(npoints,idum,ran0) |
|---|
| 2 | |
|---|
| 3 | ! $Id: ran0_vec.F 465 2003-08-06 14:45:44Z fairhead $ |
|---|
| 4 | ! Platform independent random number generator from |
|---|
| 5 | ! Numerical Recipies |
|---|
| 6 | ! Mark Webb July 1999 |
|---|
| 7 | |
|---|
| 8 | implicit none |
|---|
| 9 | |
|---|
| 10 | integer j,npoints,idum(npoints),IA,IM,IQ,IR,k(npoints) |
|---|
| 11 | real ran0(npoints),AM |
|---|
| 12 | |
|---|
| 13 | parameter (IA=16807, IM=2147483647, AM=1.0/IM, IQ=127773, IR=2836) |
|---|
| 14 | |
|---|
| 15 | c do j=1,npoints |
|---|
| 16 | c if (idum(j).eq.0) then |
|---|
| 17 | c write(6,*) 'idum=',idum |
|---|
| 18 | c write(6,*) 'ZERO seed not allowed' |
|---|
| 19 | c stop |
|---|
| 20 | c endif |
|---|
| 21 | c enddo |
|---|
| 22 | |
|---|
| 23 | do j=1,npoints |
|---|
| 24 | k(j)=idum(j)/IQ |
|---|
| 25 | idum(j)=IA*(idum(j)-k(j)*IQ)-IR*k(j) |
|---|
| 26 | if (idum(j).lt.0) idum(j)=idum(j)+IM |
|---|
| 27 | ran0(j)=AM*idum(j) |
|---|
| 28 | enddo |
|---|
| 29 | |
|---|
| 30 | end |
|---|
| 31 | |
|---|
Note: See
TracBrowser
for help on using the repository browser.
