gfortran - random number generator in fortran -



gfortran - random number generator in fortran -

i testing rng code mentioned in link (fortran 77 code): https://www.cisl.ucar.edu/zine/96/spring/articles/3.random-6.html applies park & miller algorithm.

the function phone call of programme is

call srand(seed) x=rand()

however programme not seem respond seeding srand(), i.e., x-value unaffected initial seeding, , equal ~0.218. suspect has definition of mutual block , info block, value of x equivalent putting seed 123456789, initialization value defined in datablock.

any ideas?

i compiling gfortran.

ok, problem original srand , rand may called. renamed functions srand2 , rand2 , start work expected.

for seed = 1 result 7.82636926e-06 , seed = 2 result 1.56527385e-05. checked in gfortran , in intel's fortran.

fortran gfortran prng fortran-common-block

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