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News
- A video recording of the Thrust presentation at the GPU Technology Conference has been posted.
- Thrust v1.1 has been released! Refer to the CHANGELOG for changes since v1.0.
- Started Thrust Developer Blog
- Posted Introduction to Thrust slides.
Examples
Thrust is best explained through examples. The following source code generates random numbers on the host and transfers them to the device where they are sorted.
#include <thrust/host_vector.h>
#include <thrust/device_vector.h>
#include <thrust/generate.h>
#include <thrust/sort.h>
#include <thrust/copy.h>
#include <cstdlib>
int main(void)
{
// generate 16M random numbers on the host
thrust::host_vector<int> h_vec(1 << 24);
thrust::generate(h_vec.begin(), h_vec.end(), rand);
// transfer data to the device
thrust::device_vector<int> d_vec = h_vec;
// sort data on the device (145M keys per second on a GTX 280)
thrust::sort(d_vec.begin(), d_vec.end());
// transfer data back to host
thrust::copy(d_vec.begin(), d_vec.end(), h_vec.begin());
return 0;
}This code sample computes the sum of 100 random numbers on the GPU.
#include <thrust/host_vector.h>
#include <thrust/device_vector.h>
#include <thrust/generate.h>
#include <thrust/reduce.h>
#include <thrust/functional.h>
#include <cstdlib>
int main(void)
{
// generate random data on the host
thrust::host_vector<int> h_vec(100);
thrust::generate(h_vec.begin(), h_vec.end(), rand);
// transfer to device and compute sum
thrust::device_vector<int> d_vec = h_vec;
int x = thrust::reduce(d_vec.begin(), d_vec.end(), thrust::plus<int>());
return 0;
}Refer to the Tutorial page for further information and examples.
Contributors
The primary developers of Thrust are:
- Jared Hoberock
- Nathan Bell
- Mark Harris
- Michael Garland
- Nadathur Satish
- Shubho Sengupta
