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SWIFT
SWIFTsim
Commits
cc708785
Commit
cc708785
authored
6 years ago
by
Folkert Nobels
Browse files
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Add the ID and adjacent ID check
parent
c157975a
Branches
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Tags
Tags containing commit
1 merge request
!742
Fix the random number generator
Changes
1
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1 changed file
tests/testRandom.c
+42
-15
42 additions, 15 deletions
tests/testRandom.c
with
42 additions
and
15 deletions
tests/testRandom.c
+
42
−
15
View file @
cc708785
...
...
@@ -51,22 +51,28 @@ int main(int argc, char* argv[]) {
const
long
long
id
=
rand
()
*
(
1LL
<<
31
)
+
rand
();
const
integertime_t
increment
=
(
1LL
<<
time_bin
);
const
long
long
idoffset
=
id
+
2
;
message
(
"Testing id=%lld time_bin=%d"
,
id
,
time_bin
);
char
buffer
[
32
];
snprintf
(
buffer
,
sizeof
(
char
)
*
32
,
"fileII%i.txt"
,
i
);
//
char buffer[32];
//
snprintf(buffer, sizeof(char)*32, "fileII%i.txt", i);
FILE
*
fp
;
fp
=
fopen
(
buffer
,
"w"
);
//
FILE *fp;
//
fp = fopen(buffer,"w");
double
total
=
0
.,
total2
=
0
.;
int
count
=
0
;
/* Pearson correlation variables */
/* Pearson correlation variables
for different times
*/
double
sum_previous_current
=
0
.;
double
previous
=
0
.;
message
(
"Max nr timesteps = %lld"
,
max_nr_timesteps
);
/* Pearson correlation for two different IDs */
double
pearsonIDs
=
0
.;
double
totalID
=
0
.;
double
total2ID
=
0
.;
//message("Max nr timesteps = %lld",max_nr_timesteps);
/* Check that the numbers are uniform over the full-range of useful
* time-steps */
...
...
@@ -78,33 +84,54 @@ int main(int argc, char* argv[]) {
const
double
r
=
random_unit_interval
(
id
,
ti_current
,
random_number_star_formation
);
const
double
r_2ndid
=
random_unit_interval
(
idoffset
,
ti_current
,
random_number_star_formation
);
total
+=
r
;
total2
+=
r
*
r
;
count
++
;
const
unsigned
int
test
=
127LL
*
(
ti_current
-
1LL
)
+
124429LL
;
fprintf
(
fp
,
"%f %lld %lld
\n
"
,
r
,
(
test
)
%
1514917LL
,
ti_current
);
//
const unsigned int test = 127LL*(ti_current - 1LL) + 124429LL;
//
fprintf(fp, "%f %lld %lld\n", r, (test) % 1514917LL, ti_current );
/* For the pearson correlation */
/* For the pearson correlation
of time i and i-1
*/
sum_previous_current
+=
r
*
previous
;
previous
=
r
;
/* Pearson correlation for small different IDs */
pearsonIDs
+=
r
*
r_2ndid
;
totalID
+=
r_2ndid
;
total2ID
+=
r_2ndid
*
r_2ndid
;
}
fclose
(
fp
);
//
fclose(fp);
const
double
mean
=
total
/
(
double
)
count
;
const
double
var
=
total2
/
(
double
)
count
-
mean
*
mean
;
double
mean_xy
=
sum_previous_current
/
(
(
double
)
count
-
1
.
f
);
double
correlation
=
(
mean_xy
-
mean
*
mean
)
/
var
;
/* Pearson correlation calculation for different times */
const
double
mean_xy
=
sum_previous_current
/
(
(
double
)
count
-
1
.
f
);
const
double
correlation
=
(
mean_xy
-
mean
*
mean
)
/
var
;
message
(
"Correlation = %f"
,
correlation
);
/* Pearson correlation for different IDs */
const
double
meanID
=
totalID
/
(
double
)
count
;
const
double
varID
=
total2ID
/
(
double
)
count
-
meanID
*
meanID
;
const
double
meanID_xy
=
pearsonIDs
/
(
double
)
count
;
const
double
correlationID
=
(
meanID_xy
-
mean
*
meanID
)
/
pow
(
var
*
varID
,
.
5
f
);
message
(
"Correlation ID = %f"
,
correlationID
);
/* Verify that the mean and variance match the expected values for a uniform
* distribution */
if
((
fabs
(
mean
-
0
.
5
)
/
0
.
5
>
2e-4
)
||
(
fabs
(
var
-
1
.
/
12
.)
/
(
1
.
/
12
.)
>
1e-3
)
||
(
fabs
(
correlation
)
>
3e-4
))
{
(
fabs
(
correlation
)
>
3e-4
)
||
(
fabs
(
correlationID
)
>
3e-4
)
)
{
message
(
"Test failed!"
);
message
(
"Result: count=%d mean=%f var=%f, correlation=%f"
,
count
,
mean
,
var
,
correlation
);
message
(
"Expected: count=%d mean=%f var=%f, correlation=%f"
,
count
,
0
.
5
f
,
1
.
/
12
.,
0
.);
message
(
"Result: count=%d mean=%f var=%f,
correlation=%f ID
correlation=%f"
,
count
,
mean
,
var
,
correlation
,
correlationID
);
message
(
"Expected: count=%d mean=%f var=%f,
correlation=%f ID
correlation=%f"
,
count
,
0
.
5
f
,
1
.
/
12
.,
0
.,
0
.);
return
1
;
}
}
...
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