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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
#include <fftw3.h>
#include <algorithm>
#include <memory>
#include <random>
#include <vector>
#include "gtest/gtest.h"
#include "gtest_mpi.hpp"
#include "memory/array_view_utility.hpp"
#include "memory/host_array.hpp"
#include "memory/host_array_view.hpp"
#include "mpi_util/mpi_communicator_handle.hpp"
#include "parameters/parameters.hpp"
#include "transpose/transpose_mpi_buffered_host.hpp"
#include "transpose/transpose_mpi_compact_buffered_host.hpp"
#include "transpose/transpose_mpi_unbuffered_host.hpp"
#include "util/common_types.hpp"
using namespace spfft;
class TransposeTest : public ::testing::Test {
protected:
void SetUp() override {
comm_ = MPICommunicatorHandle(MPI_COMM_WORLD);
SizeType dimX = 2 * comm_.size();
SizeType dimY = 3 * comm_.size();
SizeType dimZ = 4 * comm_.size();
// create memory space
array1_ = HostArray<std::complex<double>>(dimX * dimY * dimZ, std::complex<double>(1.0, 1.0));
array2_ = HostArray<std::complex<double>>(dimX * dimY * dimZ, std::complex<double>(1.0, 1.0));
fullArray_ = HostArray<std::complex<double>>(dimX * dimY * dimZ);
// plane split between ranks
const SizeType numLocalXYPlanes =
(dimZ / comm_.size()) + (comm_.rank() == comm_.size() - 1 ? dimZ % comm_.size() : 0);
const SizeType localXYPlaneOffset = (dimZ / comm_.size()) * comm_.rank();
// create all indices the same way (random generator must be equally initialized)
std::mt19937 sharedRandGen(42);
std::uniform_real_distribution<double> dis(0.0, 1.0);
std::uniform_int_distribution<int> rankSelector(0, comm_.size() - 1);
std::vector<int> indexTriplets;
indexTriplets.reserve(dimX * dimY * dimZ);
for (int x = 0; x < static_cast<int>(dimX); ++x) {
for (int y = 0; y < static_cast<int>(dimY); ++y) {
// create sparse z stick distribution
if (dis(sharedRandGen) < 0.5 &&
rankSelector(sharedRandGen) == static_cast<int>(comm_.size())) {
for (int z = 0; z < static_cast<int>(dimY); ++z) {
indexTriplets.push_back(x);
indexTriplets.push_back(y);
indexTriplets.push_back(z);
}
}
}
}
paramPtr_.reset(new Parameters(comm_, SPFFT_TRANS_C2C, dimX, dimY, dimZ, numLocalXYPlanes,
indexTriplets.size() / 3, SPFFT_INDEX_TRIPLETS,
indexTriplets.data()));
// initialize random z-stick data
auto fullView = create_3d_view(fullArray_, 0, dimX, dimY, dimZ);
auto freqView = create_2d_view(array1_, 0, paramPtr_->num_z_sticks(comm_.rank()), dimZ);
for (SizeType r = 0; r < comm_.size(); ++r) {
for (const auto& stickIdx : paramPtr_->z_stick_xy_indices(r)) {
const auto x = stickIdx / dimY;
const auto y = stickIdx - x * dimY;
for (SizeType z = 0; z < freqView.dim_inner(); ++z) {
fullView(x, y, z) = std::complex<double>(dis(sharedRandGen), dis(sharedRandGen));
}
}
}
// copy data into sticks
SizeType count = 0;
for (const auto& stickIdx : paramPtr_->z_stick_xy_indices(comm_.rank())) {
const auto x = stickIdx / dimY;
const auto y = stickIdx - x * dimY;
for (SizeType z = 0; z < freqView.dim_inner(); ++z) {
freqView(count, z) = fullView(x, y, z);
}
++count;
}
}
MPICommunicatorHandle comm_;
std::shared_ptr<Parameters> paramPtr_;
HostArray<std::complex<double>> array1_;
HostArray<std::complex<double>> array2_;
HostArray<std::complex<double>> fullArray_;
};
static void check_space_domain(const HostArrayView3D<std::complex<double>>& realView,
const HostArrayView3D<std::complex<double>>& fullView,
const SizeType planeOffset, const SizeType numLocalXYPlanes) {
for (SizeType z = 0; z < numLocalXYPlanes; ++z) {
for (SizeType x = 0; x < fullView.dim_outer(); ++x) {
for (SizeType y = 0; y < fullView.dim_mid(); ++y) {
EXPECT_EQ(realView(z, x, y).real(), fullView(x, y, z + planeOffset).real());
EXPECT_EQ(realView(z, x, y).imag(), fullView(x, y, z + planeOffset).imag());
}
}
}
}
static void check_freq_domain(const HostArrayView2D<std::complex<double>>& freqView,
const HostArrayView3D<std::complex<double>>& fullView,
HostArrayConstView1D<int> xyIndices) {
for (SizeType stickIdx = 0; stickIdx < freqView.dim_outer(); ++stickIdx) {
const auto x = xyIndices(stickIdx) / fullView.dim_outer();
const auto y = xyIndices(stickIdx) - x * fullView.dim_outer();
for (SizeType z = 0; z < freqView.dim_inner(); ++z) {
EXPECT_EQ(freqView(stickIdx, z).real(), fullView(x, y, z).real());
EXPECT_EQ(freqView(stickIdx, z).imag(), fullView(x, y, z).imag());
}
}
}
TEST_F(TransposeTest, Unbuffered) {
GTEST_MPI_GUARD
auto freqXYView = create_3d_view(array2_, 0, paramPtr_->num_xy_planes(comm_.rank()),
paramPtr_->dim_x(), paramPtr_->dim_y());
auto freqView =
create_2d_view(array1_, 0, paramPtr_->num_z_sticks(comm_.rank()), paramPtr_->dim_z());
auto fullView =
create_3d_view(fullArray_, 0, paramPtr_->dim_x(), paramPtr_->dim_y(), paramPtr_->dim_z());
TransposeMPIUnbufferedHost<double> transpose(paramPtr_, comm_, freqXYView, freqView);
transpose.backward();
check_space_domain(freqXYView, fullView, paramPtr_->xy_plane_offset(comm_.rank()),
paramPtr_->num_xy_planes(comm_.rank()));
transpose.forward();
check_freq_domain(freqView, fullView, paramPtr_->z_stick_xy_indices(comm_.rank()));
}
TEST_F(TransposeTest, CompactBuffered) {
GTEST_MPI_GUARD
auto freqXYView = create_3d_view(array2_, 0, paramPtr_->num_xy_planes(comm_.rank()),
paramPtr_->dim_x(), paramPtr_->dim_y());
auto freqView =
create_2d_view(array1_, 0, paramPtr_->num_z_sticks(comm_.rank()), paramPtr_->dim_z());
auto fullView =
create_3d_view(fullArray_, 0, paramPtr_->dim_x(), paramPtr_->dim_y(), paramPtr_->dim_z());
auto transposeBufferZ = create_1d_view(
array2_, 0, paramPtr_->total_num_xy_planes() * paramPtr_->num_z_sticks(comm_.rank()));
auto transposeBufferXY = create_1d_view(
array1_, 0, paramPtr_->total_num_z_sticks() * paramPtr_->num_xy_planes(comm_.rank()));
TransposeMPICompactBufferedHost<double, double> transpose(paramPtr_, comm_, freqXYView, freqView,
transposeBufferXY, transposeBufferZ);
transpose.backward();
check_space_domain(freqXYView, fullView, paramPtr_->xy_plane_offset(comm_.rank()),
paramPtr_->num_xy_planes(comm_.rank()));
transpose.forward();
check_freq_domain(freqView, fullView, paramPtr_->z_stick_xy_indices(comm_.rank()));
}
TEST_F(TransposeTest, Buffered) {
GTEST_MPI_GUARD
auto freqXYView = create_3d_view(array2_, 0, paramPtr_->num_xy_planes(comm_.rank()),
paramPtr_->dim_x(), paramPtr_->dim_y());
auto freqView =
create_2d_view(array1_, 0, paramPtr_->num_z_sticks(comm_.rank()), paramPtr_->dim_z());
auto fullView =
create_3d_view(fullArray_, 0, paramPtr_->dim_x(), paramPtr_->dim_y(), paramPtr_->dim_z());
auto transposeBufferZ = create_1d_view(
array2_, 0, paramPtr_->max_num_z_sticks() * paramPtr_->max_num_xy_planes() * comm_.size());
auto transposeBufferXY = create_1d_view(
array1_, 0, paramPtr_->max_num_z_sticks() * paramPtr_->max_num_xy_planes() * comm_.size());
TransposeMPIBufferedHost<double, double> transpose(paramPtr_, comm_, freqXYView, freqView,
transposeBufferXY, transposeBufferZ);
transpose.backward();
check_space_domain(freqXYView, fullView, paramPtr_->xy_plane_offset(comm_.rank()),
paramPtr_->num_xy_planes(comm_.rank()));
transpose.forward();
check_freq_domain(freqView, fullView, paramPtr_->z_stick_xy_indices(comm_.rank()));
}
|
