mdtools/md_code/randomSPRNG.cpp

#include <iostream>
#include <cmath>

#include "randomSPRNG.hpp"
#include "simError.h"


/* randomStreamSPRNF creates a new SPRNG stream for random numbers
 */

int ranStreamSPRNG::nSPRNGStreams;

randomStreamSPRNG::randomStreamSPRNG(){
#ifdef IS_MPI

  
#else
  nSPRNGStreams++;

  myStreamNumber = nSPRNGStreams;

  thisStream = init_sprng(GTYPE,streamnum,nstreams,SEED,SPRNG_DEFAULT);


#endif
}

randomStreamSPRNG::~randomStreamSPRNG(){

  free_sprng(int *thisStream);
  nSPRNGStreams--;


}


double getRanStreamSPRNG(){
  double ranNum;
  nanNum = sprng(thisStream);
  return ranNum;
}
Revision:	220
Committed:	Mon Dec 30 16:20:42 2002 UTC (22 years, 10 months ago) by chuckv
File size:	593 byte(s)
Log Message:	Added more code to randomSPRNG classes.
#	User	Rev	Content
1	chuckv	219	#include <iostream>
2			#include <cmath>
3
4			#include "randomSPRNG.hpp"
5			#include "simError.h"
6
7
8	chuckv	220	/* randomStreamSPRNF creates a new SPRNG stream for random numbers
9			*/
10	chuckv	219
11	chuckv	220	int ranStreamSPRNG::nSPRNGStreams;
12	chuckv	219
13	chuckv	220	randomStreamSPRNG::randomStreamSPRNG(){
14			#ifdef IS_MPI
15	chuckv	219
16	chuckv	220
17
18			#else
19			nSPRNGStreams++;
20
21			myStreamNumber = nSPRNGStreams;
22
23			thisStream = init_sprng(GTYPE,streamnum,nstreams,SEED,SPRNG_DEFAULT);
24
25
26			#endif
27	chuckv	219	}
28	chuckv	220
29			randomStreamSPRNG::~randomStreamSPRNG(){
30
31			free_sprng(int *thisStream);
32			nSPRNGStreams--;
33
34
35			}
36
37
38			double getRanStreamSPRNG(){
39			double ranNum;
40			nanNum = sprng(thisStream);
41			return ranNum;
42			}