Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F120771183
TestSort.hpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Sun, Jul 6, 22:53
Size
6 KB
Mime Type
text/x-c
Expires
Tue, Jul 8, 22:53 (2 d)
Engine
blob
Format
Raw Data
Handle
27246391
Attached To
rLAMMPS lammps
TestSort.hpp
View Options
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
#ifndef TESTSORT_HPP_
#define TESTSORT_HPP_
#include <gtest/gtest.h>
#include<Kokkos_Core.hpp>
#include<Kokkos_Random.hpp>
#include<Kokkos_Sort.hpp>
namespace Test {
namespace Impl{
template<class ExecutionSpace, class Scalar>
struct is_sorted_struct {
typedef unsigned int value_type;
typedef ExecutionSpace execution_space;
Kokkos::View<Scalar*,ExecutionSpace> keys;
is_sorted_struct(Kokkos::View<Scalar*,ExecutionSpace> keys_):keys(keys_) {}
KOKKOS_INLINE_FUNCTION
void operator() (int i, unsigned int& count) const {
if(keys(i)>keys(i+1)) count++;
}
};
template<class ExecutionSpace, class Scalar>
struct sum {
typedef double value_type;
typedef ExecutionSpace execution_space;
Kokkos::View<Scalar*,ExecutionSpace> keys;
sum(Kokkos::View<Scalar*,ExecutionSpace> keys_):keys(keys_) {}
KOKKOS_INLINE_FUNCTION
void operator() (int i, double& count) const {
count+=keys(i);
}
};
template<class ExecutionSpace, class Scalar>
struct bin3d_is_sorted_struct {
typedef unsigned int value_type;
typedef ExecutionSpace execution_space;
Kokkos::View<Scalar*[3],ExecutionSpace> keys;
int max_bins;
Scalar min;
Scalar max;
bin3d_is_sorted_struct(Kokkos::View<Scalar*[3],ExecutionSpace> keys_,int max_bins_,Scalar min_,Scalar max_):
keys(keys_),max_bins(max_bins_),min(min_),max(max_) {
}
KOKKOS_INLINE_FUNCTION
void operator() (int i, unsigned int& count) const {
int ix1 = int ((keys(i,0)-min)/max * max_bins);
int iy1 = int ((keys(i,1)-min)/max * max_bins);
int iz1 = int ((keys(i,2)-min)/max * max_bins);
int ix2 = int ((keys(i+1,0)-min)/max * max_bins);
int iy2 = int ((keys(i+1,1)-min)/max * max_bins);
int iz2 = int ((keys(i+1,2)-min)/max * max_bins);
if (ix1>ix2) count++;
else if(ix1==ix2) {
if (iy1>iy2) count++;
else if ((iy1==iy2) && (iz1>iz2)) count++;
}
}
};
template<class ExecutionSpace, class Scalar>
struct sum3D {
typedef double value_type;
typedef ExecutionSpace execution_space;
Kokkos::View<Scalar*[3],ExecutionSpace> keys;
sum3D(Kokkos::View<Scalar*[3],ExecutionSpace> keys_):keys(keys_) {}
KOKKOS_INLINE_FUNCTION
void operator() (int i, double& count) const {
count+=keys(i,0);
count+=keys(i,1);
count+=keys(i,2);
}
};
template<class ExecutionSpace, typename KeyType>
void test_1D_sort(unsigned int n,bool force_kokkos) {
typedef Kokkos::View<KeyType*,ExecutionSpace> KeyViewType;
KeyViewType keys("Keys",n);
Kokkos::Random_XorShift64_Pool<ExecutionSpace> g(1931);
Kokkos::fill_random(keys,g,Kokkos::Random_XorShift64_Pool<ExecutionSpace>::generator_type::MAX_URAND);
double sum_before = 0.0;
double sum_after = 0.0;
unsigned int sort_fails = 0;
Kokkos::parallel_reduce(n,sum<ExecutionSpace, KeyType>(keys),sum_before);
Kokkos::sort(keys,force_kokkos);
Kokkos::parallel_reduce(n,sum<ExecutionSpace, KeyType>(keys),sum_after);
Kokkos::parallel_reduce(n-1,is_sorted_struct<ExecutionSpace, KeyType>(keys),sort_fails);
double ratio = sum_before/sum_after;
double epsilon = 1e-10;
unsigned int equal_sum = (ratio > (1.0-epsilon)) && (ratio < (1.0+epsilon)) ? 1 : 0;
ASSERT_EQ(sort_fails,0);
ASSERT_EQ(equal_sum,1);
}
template<class ExecutionSpace, typename KeyType>
void test_3D_sort(unsigned int n) {
typedef Kokkos::View<KeyType*[3],ExecutionSpace > KeyViewType;
KeyViewType keys("Keys",n*n*n);
Kokkos::Random_XorShift64_Pool<ExecutionSpace> g(1931);
Kokkos::fill_random(keys,g,100.0);
double sum_before = 0.0;
double sum_after = 0.0;
unsigned int sort_fails = 0;
Kokkos::parallel_reduce(keys.dimension_0(),sum3D<ExecutionSpace, KeyType>(keys),sum_before);
int bin_1d = 1;
while( bin_1d*bin_1d*bin_1d*4< (int) keys.dimension_0() ) bin_1d*=2;
int bin_max[3] = {bin_1d,bin_1d,bin_1d};
typename KeyViewType::value_type min[3] = {0,0,0};
typename KeyViewType::value_type max[3] = {100,100,100};
typedef Kokkos::SortImpl::DefaultBinOp3D< KeyViewType > BinOp;
BinOp bin_op(bin_max,min,max);
Kokkos::BinSort< KeyViewType , BinOp >
Sorter(keys,bin_op,false);
Sorter.create_permute_vector();
Sorter.template sort< KeyViewType >(keys);
Kokkos::parallel_reduce(keys.dimension_0(),sum3D<ExecutionSpace, KeyType>(keys),sum_after);
Kokkos::parallel_reduce(keys.dimension_0()-1,bin3d_is_sorted_struct<ExecutionSpace, KeyType>(keys,bin_1d,min[0],max[0]),sort_fails);
double ratio = sum_before/sum_after;
double epsilon = 1e-10;
unsigned int equal_sum = (ratio > (1.0-epsilon)) && (ratio < (1.0+epsilon)) ? 1 : 0;
printf("3D Sort Sum: %f %f Fails: %u\n",sum_before,sum_after,sort_fails);
ASSERT_EQ(sort_fails,0);
ASSERT_EQ(equal_sum,1);
}
template<class ExecutionSpace, typename KeyType>
void test_sort(unsigned int N)
{
test_1D_sort<ExecutionSpace,KeyType>(N*N*N, true);
test_1D_sort<ExecutionSpace,KeyType>(N*N*N, false);
test_3D_sort<ExecutionSpace,KeyType>(N);
}
}
}
#endif /* TESTSORT_HPP_ */
Event Timeline
Log In to Comment