blob: d22f6b36e493d24156a0397496c52739894502da (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
#ifndef TENSORFLOW_LIB_RANDOM_PHILOX_RANDOM_TEST_UTILS_H_
#define TENSORFLOW_LIB_RANDOM_PHILOX_RANDOM_TEST_UTILS_H_
#include <algorithm>
#include "tensorflow/core/lib/random/philox_random.h"
#include "tensorflow/core/lib/random/random.h"
#include "tensorflow/core/platform/logging.h"
namespace tensorflow {
namespace random {
// Return a random seed.
inline uint64 GetTestSeed() { return New64(); }
// A utility function to fill the given array with samples from the given
// distribution.
template <class Distribution>
void FillRandoms(PhiloxRandom gen, typename Distribution::ResultElementType* p,
int64 size) {
const int granularity = Distribution::kResultElementCount;
CHECK(size % granularity == 0) << " size: " << size
<< " granularity: " << granularity;
Distribution dist;
for (int i = 0; i < size; i += granularity) {
const auto sample = dist(&gen);
std::copy(&sample[0], &sample[0] + granularity, &p[i]);
}
}
} // namespace random
} // namespace tensorflow
#endif // TENSORFLOW_LIB_RANDOM_PHILOX_RANDOM_TEST_UTILS_H_
|
