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Boosteigencompilewithboost146 #49

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merged 3 commits into from
Jan 22, 2014
Merged

Boosteigencompilewithboost146 #49

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3d2696e
make uniform distribution usage compatible with boost 1.46
jeffdonahue Jan 22, 2014
f76b296
use boost variate_generator to pass tests w/ boost 1.46 (Gaussian filler
jeffdonahue Jan 22, 2014
fae6944
change all Rng's to use variate_generator for consistency
jeffdonahue Jan 22, 2014
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23 changes: 16 additions & 7 deletions src/caffe/util/math_functions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -398,12 +398,15 @@ void caffe_vRngUniform(const int n, Dtype* r,

// FIXME check if boundaries are handled in the same way ?
// Fixed by caffe_nextafter
boost::random::uniform_real_distribution<Dtype> random_distribution(
boost::uniform_real<Dtype> random_distribution(
a, caffe_nextafter<Dtype>(b));
Caffe::random_generator_t &generator = Caffe::vsl_stream();
boost::variate_generator<Caffe::random_generator_t,
boost::uniform_real<Dtype> > variate_generator(
generator, random_distribution);

for(int i = 0; i < n; i += 1) {
r[i] = random_distribution(generator);
for (int i = 0; i < n; ++i) {
r[i] = variate_generator();
}
}

Expand Down Expand Up @@ -431,9 +434,12 @@ void caffe_vRngGaussian(const int n, Dtype* r, const Dtype a,
// the tests are irrelevant to the random numbers.
boost::normal_distribution<Dtype> random_distribution(a, sigma);
Caffe::random_generator_t &generator = Caffe::vsl_stream();
boost::variate_generator<Caffe::random_generator_t,
boost::normal_distribution<Dtype> > variate_generator(
generator, random_distribution);

for(int i = 0; i < n; i += 1) {
r[i] = random_distribution(generator);
for (int i = 0; i < n; ++i) {
r[i] = variate_generator();
}
}

Expand All @@ -454,9 +460,12 @@ void caffe_vRngBernoulli(const int n, Dtype* r, const double p) {
// FIXME check if parameters are handled in the same way ?
boost::bernoulli_distribution<Dtype> random_distribution(p);
Caffe::random_generator_t &generator = Caffe::vsl_stream();
boost::variate_generator<Caffe::random_generator_t,
boost::bernoulli_distribution<Dtype> > variate_generator(
generator, random_distribution);

for(int i = 0; i < n; i += 1) {
r[i] = random_distribution(generator);
for (int i = 0; i < n; ++i) {
r[i] = variate_generator();
}
}

Expand Down