RANDOM_WRITE
Random Integer Data for DIEHARD
RANDOM_WRITE
is a FORTRAN90 program which
makes a file of pseudorandom 32 bit integers for
input to the DIEHARD program.
Choices of generators include:

A multiplywithcarry (MWC) generator
x(n) = a * x(n1) + carry mod 2^32;

A multiplywithcarry (MWC) generator on pairs of 16 bits;

The "Mother of all random number generators";

The KISS generator;

The simple but very good generator COMBO;

The lagged FibonacciMWC combination ULTRA;

A combination multiplywithcarry/subtractwithborrow
(SWB) generator, period ~ 10^364;

An extended congruential generator;

The SuperDuper generator;

A subtractwithborrow generator;

Any specified congruential generator;

The 31bit generator ran2 from Numerical Recipes;

Any specified shiftregister generator, 31 or 32 bits;

The system generator in Sun Fortran f77;

Any laggedFibonacci generator, x(n) = x(nr) op x(ns);

An inverse congruential generator;
Languages:
RANDOM_WRITE is available in
a FORTRAN90 version
Related Data and Programs:
CVT,
a FORTRAN90 library which
computes elements of a Centroidal Voronoi Tessellation.
FAURE,
a FORTRAN90 library which
computes elements of a Faure quasirandom sequence.
GRID,
a FORTRAN90 library which
computes elements of a grid dataset.
HALTON,
a FORTRAN90 library which
computes elements of a Halton quasirandom sequence.
HAMMERSLEY,
a FORTRAN90 library which
computes elements of a Hammersley quasirandom sequence.
HEX_GRID,
a FORTRAN90 library which
computes elements of a hexagonal grid dataset.
HEX_GRID_ANGLE,
a FORTRAN90 library which
computes elements of an angled hexagonal grid dataset.
IEEE_UNIFORM,
a FORTRAN90 library which
tries to uniformly sample the discrete set of values that represent the
legal IEEE real numbers;
IHS,
a FORTRAN90 library which
computes elements of an improved distributed Latin hypercube dataset.
LATIN_CENTER,
a FORTRAN90 library which
computes elements of a Latin Hypercube dataset, choosing center points.
LATIN_EDGE,
a FORTRAN90 library which
computes elements of a Latin Hypercube dataset, choosing edge points.
LATIN_RANDOM,
a FORTRAN90 library which
computes elements of a Latin Hypercube dataset, choosing points at random.
LCVT,
a FORTRAN90 library which
computes a latinized Centroidal Voronoi Tessellation.
NIEDERREITER2,
a FORTRAN90 library which
computes elements of a Niederreiter quasirandom sequence with base 2.
NORMAL,
a FORTRAN90 library which
computes elements of a sequence of pseudorandom normally distributed values.
SOBOL,
a FORTRAN90 library which
computes elements of a Sobol quasirandom sequence.
SUBPAK,
a FORTRAN90 library which
includes a routine random_initialize
that can be used to try to initialize the seed for the FORTRAN90
random number generator.
UNIFORM,
a FORTRAN90 library which
computes elements of a pseudorandom uniform sequence.
UNIFORM_DATASET,
a FORTRAN90 program which
generates a dataset of uniform pseudorandom values and writes them to a file.
VAN_DER_CORPUT,
a FORTRAN90 library which
computes elements of a van der Corput quasirandom sequence.
Reference:

George Marsaglia, A. Zaman,
Monkey Tests for Random Number Generators,
Computers and Mathematics with Applications,
Volume 9, Number 9, 1995, pages 110.

George Marsaglia, A. Zaman,
Some VeryLongPeriod Portable Random Number Generators,
Computers in Physics,
Volume 8, 1995, pages 117121.
Source Code:
Examples and Tests:
Generator 1 is a multiplywithcarry (MWC) generator
x(n) = a * x(n1) + carry mod 2^32;

input01.txt,
input to make an example of generator 1.

output01.txt,
the printed output. This does not include the data file "mwc1.32"
that is also created.
Generator 2 is a multiplywithcarry (MWC) generator
on pairs of 16 bits;

input02.txt,
input to make an example of generator 2.

output02.txt,
the printed output. This does not include the data file "1616.32"
that is also created.
List of Routines:

MAIN is the main program for RANDOM_WRITE.

IRAN2 is a random number generator from Numerical Recipes.

KS_TEST applies the KolmorogovSmirnov test.

MAKE_1616 generates data from two 16 bit multiplywithcarry generators.

MAKE_CMBO generates data from the COMBO generator.

MAKE_CONG generates data from a congruential generator.

MAKE_FIBO generates data from a lagged Fibonacci generator.

MAKE_INVC generates data from an inverse congruential generator.

MAKE_KISS generates data from the KISS generator.

MAKE_LTRA generates data from the ULTRA generator.

MAKE_MTHR generates data from the "mother of all generators" generator.

MAKE_MWC1 generates data from a multiplywithcarry generator.

MAKE_RAN2 generates data from a Numerical Recipes generator.

MAKE_SBMC generates data from a subtract/borrow/multiply/carry generator.

MAKE_SHRG generates data from a specified shift register generator.

MAKE_SUNR generates data from the Sun f77 generator.

MAKE_SUPR generates data from the superduper generator.

MAKE_SWB generates data from a subtractwithborrow generator.

MAKE_XCNG generates data from an extended congruential generator.

PLOT1 makes a printer plot of data.

PROD ???

R8_SWAP swaps two R8's.

R8VEC_HEAP_D reorders an R8VEC into an descending heap.

R8VEC_SORT_HEAP_A ascending sorts an R8VEC using heap sort.

SP is called by KS_TEST.

SUMMER computes X(1:4) + Y(1:4).
You can go up one level to
the FORTRAN90 source codes.
Last revised on 19 January 2011.