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C--- 8 June 1999 Chris S. modified to read a file with the first argument
C--- being a generator type
C--- added 'integer gentype'
C--- added 'Reading in a generator type' and 'read *, gentype'
C--- added 'gtype' and 'integer gtype' to 'check_gen' and 'check_errors'
#define YES 1
#define NO 0
#define NULL 0
#define PARAM 0
program test_generator
implicit none
#include "sprng_f.h"
integer check_gen
integer check_errors
integer result, temp
integer seed1, seed2
integer gentype
result = YES
C -- Checking make_sprng_seed ...
seed1 = make_sprng_seed()
seed2 = make_sprng_seed()
if( seed1 .eq. seed2 ) then
print *, 'ERROR: make_sprng_seed does not return unique seeds'
result = NO
end if
C--- Reading in a generator type
read *, gentype
C -- Check generator with correct parameters --
temp = check_gen(gentype)
if(temp .ne. YES) then
result = NO
end if
C -- Check if generator meets specifications in handling errors --
temp = check_errors(gentype)
if(temp .ne. YES) then
result = NO
end if
print *, ' '
if(result .eq. YES) then
print *, 'Result: PASSED'
else
print *, 'Result: FAILED'
end if
print *, ' '
end
integer function check_gen(gtype)
implicit none
#include "sprng_f.h"
integer gtype
SPRNG_POINTER gen1, gen2, gen3, gen4
SPRNG_POINTER gen5(1), newgen1(2), newgen2(2)
SPRNG_POINTER tmpGen
integer tempi1, tempi2
real tempf1, tempf2
real*8 tempd1, tempd2
integer i, correct, result
integer temp
integer ngens, seed
integer nsp
integer size
character s(MAX_PACKED_LENGTH)
ngens = 3
seed = 985456376
gen1 = init_sprng(gtype,0,ngens,seed,PARAM)
gen2 = init_sprng(gtype,1,ngens,seed,PARAM)
gen3 = init_sprng(gtype,2,ngens,seed,PARAM)
result = YES
correct = YES
C -- Check arithmetic for integer, float and double --
do 100 i = 1,500
tempi2 = isprng(gen1)
read *, tempi1
if(tempi2 .ne. tempi1) then
result = NO
correct = NO
end if
100 continue
if(correct .eq. NO) then
print *, 'ERROR: Integer generator produces incorrect stream.'
else
C print *, 'PASSED: Integer generator passed reproducibility test.'
endif
correct = YES
do 200 i = 1,500
tempf1 = fget_rn_flt(gen1)
read *, tempf2
if ( abs(tempf2-tempf1) .ge. 1.e-6) then
result = NO
correct = NO
end if
200 continue
if(correct .eq. NO) then
print *, 'FAILED: Float generator produces incorrect stream.'
else
C print *, 'PASSED: Float generator passed reproducibility test.'
endif
correct = YES
do 300 i = 1,500
tempd1 = fget_rn_dbl(gen1)
read *, tempd2
if ( abs(tempd2-tempd1) .ge. 1.e-14) then
result = NO
correct = NO
end if
300 continue
if(correct .eq. NO) then
print *, 'FAILED: Double generator produces incorrect stream.'
else
c print *, 'PASSED: Double generator passed reproducibility test.'
endif
C ---- check spawning ----
nsp = 0
temp = spawn_sprng(gen2,2, newgen1(1))
nsp = nsp + temp
tmpGen = newgen1(2)
temp = spawn_sprng(tmpGen,2,newgen2(1))
nsp = nsp + temp
if (nsp .ne. 4) then
result = NO
print *, 'FAILED: Generator was unable to spawn.'
end if
correct = YES
tmpGen = newgen2(2)
do 400 i = 1,50
read *, tempi2
tempi1 = isprng(tmpGen)
if(tempi2 .ne. tempi1) then
result = NO
correct = NO
end if
400 continue
if(correct .eq. NO) then
print *, 'FAILED: Generator incorrect after spawning.'
print *, 'Probably an error in spawning the generators.'
else
C print *, 'PASSED: Generator spawns correctly.'
endif
C -- Pack and unpack generator --
size = pack_sprng(newgen2(2), s(1))
if (size .eq. 0) then
result = NO
print *, 'FAILED: Generator was unable to pack.'
end if
gen4 = unpack_sprng(s(1))
if (gen4 .eq. 0) then
print *, 'Generator was unable to unpack '
end if
correct = YES
do 500 i = 1,50
read *, tempi2
tempi1 = isprng(gen4)
if(tempi1 .ne. tempi2) then
result = NO
correct = NO
end if
500 continue
if(correct .eq. NO) then
print *, 'FAILED: Incorrect after packing and unpacking.'
else
C print *, 'PASSED: Generator packs and unpacks correctly.'
end if
correct = YES
temp = spawn_sprng(gen4,1,gen5(1))
do 600 i=1, 50
read *, tempi2
tempi1 = isprng(gen5(1))
if(tempi1 .ne. tempi2) then
result = NO
correct = NO
end if
600 continue
if(correct .eq. NO) then
print *, 'FAILED: Generator incorrect stream after pack/unpack.'
else
C print *, 'PASSED: Generator packs/unpacks .'
end if
C -- Free generators --
nsp = free_sprng(gen1)
nsp = free_sprng(gen2)
nsp = free_sprng(gen3)
if(nsp .ne. 6) then
result = NO
print *, 'FAILED: Free returns ', nsp, 'instead of 6.'
end if
nsp = free_sprng(gen4)
nsp = free_sprng(gen5(1))
nsp = free_sprng(newgen1(1))
nsp = free_sprng(newgen1(2))
nsp = free_sprng(newgen2(1))
nsp = free_sprng(newgen2(2))
if(nsp .ne. 0) then
result = NO
print *, 'FAILED: Free returns ', nsp, 'instead of 0.'
end if
check_gen = result
return
end
C -- Check if generator meets specifications in handling errors --
integer function check_errors(gtype)
implicit none
#include "sprng_f.h"
integer gtype
SPRNG_POINTER gen1, gen2(1)
integer i
integer tempi
integer tempi1, tempi2
integer correct, result
integer seed, nsp
character s(MAX_PACKED_LENGTH)
result = YES
seed = 985456376
correct = YES
C -- checking incorrect ngens in init_sprng --
print *, 'Expect SPRNG WARNING: ngens <= 0.'
gen1 = init_sprng(gtype,0,0,seed,PARAM)
do 100 i = 1,50
tempi2 = isprng(gen1)
read *, tempi1
if(tempi2 .ne. tempi1) then
result = NO
correct = NO
end if
100 continue
if(correct .eq. 0) then
print *, 'FAILED: Generator does not produce expected stream'
print *, ' ... when ngens = 0.'
else
c print *, 'PASSED: Generator OK when ngens = 0.'
end if
C -- check if only one stream had been produced --
nsp = free_sprng(gen1)
if(nsp .ne. 0) then
result = 0
print *, 'FAILED: Generator produces more than 1 stream'
print *, ' ... when ngens = 0.'
else
c print *, 'PASSED: Generator OK when ngens = 0.'
endif
C -- checking invalid range for gennum --
correct = YES
print *, 'Expect SPRNG ERROR: gennum not in range.'
gen1 = init_sprng(gtype,-1,1,seed,PARAM)
if (gen1 .ne. NULL) then
tempi = free_sprng(gen1)
result = NO
correct = NO
endif
print *, 'Expect SPRNG ERROR: gennum not in range.'
gen1 = init_sprng(gtype,2,1,seed,PARAM)
if (gen1 .ne. NULL) then
tempi = free_sprng(gen1)
result = NO
correct = NO
endif
if(correct .eq. NO) then
print *, 'FAILED: Generator wrong with wrong gennum.'
else
c print *, 'PASSED: Generator OK when gennum is incorrect.'
endif
C-- Invalid parameter--
correct = YES
print *, 'Expect SPRNG WARNING: Invalid parameter'
gen1 = init_sprng(gtype,0,1,seed,2**30)
do 200 i = 1,50
tempi2 = isprng(gen1)
read *, tempi1
if(tempi2 .ne. tempi1) then
result = NO
correct = NO
end if
200 continue
C-- Check spawn with invalid ngens --
print *, 'Expect SPRNG WARNING: nspawned <= 0.'
nsp = spawn_sprng(gen1, 0, gen2(1))
tempi = free_sprng(gen1)
if (nsp .ne. 1) then
result = NO
print *, 'FAILED: Spawn returned', nsp
print *, ' instead of 1 when nspawned = 0.'
endif
C -- check spawned stream --
do 300 i = 1,50
tempi2 = isprng(gen2(1))
read *, tempi1
if(tempi2 .ne. tempi1) then
result = NO
correct = NO
end if
300 continue
tempi = free_sprng(gen2(1))
if(correct .eq. NO) then
print *, 'FAILED: Incorrect when nspawned = 0.'
else
c print *, 'PASSED: Generator OK when nspawned = 0.'
endif
C -- Unpack invalid string --
do 400 i = 1, MAX_PACKED_LENGTH
s(i) = '0'
400 continue
c print *, 'Expect SPRNG ERROR: packed string invalid'
gen1 = unpack_sprng(s)
if (gen1 .ne. NULL) then
result = NO
print *, 'FAILED: Generator unpacks invalid string'
c else
c print *, 'PASSED: Detected invalid string while unpacking'
endif
check_errors = result
return
end
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