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#include "catch2/catch_all.hpp"
#include "purify/distribute.h"
#include "purify/logging.h"
#include "purify/measurement_operator_factory.h"
#include "purify/mpi_utilities.h"
#include "purify/operators.h"
#include "purify/utilities.h"
#include <sopt/mpi/communicator.h>
#include <sopt/power_method.h>
using namespace purify;
TEST_CASE("Serial vs Distributed Operator") {
purify::logging::set_level("debug");
auto const world = sopt::mpi::Communicator::World();
auto const N = 100;
auto uv_serial = utilities::random_sample_density(N, 0, constant::pi / 3, 100);
uv_serial.u = world.broadcast(uv_serial.u);
uv_serial.v = world.broadcast(uv_serial.v);
uv_serial.w = world.broadcast(uv_serial.w);
uv_serial.units = utilities::vis_units::radians;
uv_serial.vis = world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(uv_serial.u.size()));
uv_serial.weights =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(uv_serial.u.size()));
utilities::vis_params uv_mpi;
if (world.is_root()) {
auto const order =
distribute::distribute_measurements(uv_serial, world, distribute::plan::radial);
uv_mpi = utilities::regroup_and_scatter(uv_serial, order, world);
} else
uv_mpi = utilities::scatter_visibilities(world);
auto const over_sample = 2;
auto const J = 4;
auto const kernel = kernels::kernel::kb;
auto const width = 128;
auto const height = 128;
const Vector<t_complex> power_init =
world.broadcast(Vector<t_complex>::Random(height * width).eval());
const auto op_serial = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
purify::measurementoperator::init_degrid_operator_2d<Vector<t_complex>>(
uv_serial.u, uv_serial.v, uv_serial.w, uv_serial.weights, height, width, over_sample),
100, 1e-4, power_init));
CAPTURE(world.size());
for (auto method : {factory::distributed_measurement_operator::mpi_distribute_image,
factory::distributed_measurement_operator::mpi_distribute_grid}) {
const auto op = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
factory::measurement_operator_factory<Vector<t_complex>>(
method, uv_mpi.u, uv_mpi.v, uv_mpi.w, uv_mpi.weights, height, width, over_sample),
100, 1e-4, power_init));
if (uv_serial.u.size() == uv_mpi.u.size()) {
REQUIRE(uv_serial.u.isApprox(uv_mpi.u));
CHECK(uv_serial.v.isApprox(uv_mpi.v));
CHECK(uv_serial.weights.isApprox(uv_mpi.weights));
}
SECTION("Degridding") {
Vector<t_complex> const image =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(width * height));
auto uv_degrid = uv_serial;
if (world.is_root()) {
uv_degrid.vis = *op_serial * image;
auto const order =
distribute::distribute_measurements(uv_degrid, world, distribute::plan::radial);
uv_degrid = utilities::regroup_and_scatter(uv_degrid, order, world);
} else
uv_degrid = utilities::scatter_visibilities(world);
Vector<t_complex> const degridded = *op * image;
REQUIRE(degridded.size() == uv_degrid.vis.size());
REQUIRE(degridded.isApprox(uv_degrid.vis, 1e-4));
}
SECTION("Gridding") {
Vector<t_complex> const gridded = op->adjoint() * uv_mpi.vis;
Vector<t_complex> const gridded_serial = op_serial->adjoint() * uv_serial.vis;
REQUIRE(gridded.size() == gridded_serial.size());
REQUIRE(gridded.isApprox(gridded_serial, 1e-4));
}
}
SECTION("All to All") {
t_real const cell_size = 1;
const auto kmeans = distribute::kmeans_algo(uv_mpi.w, world.size(), 100, world);
const std::vector<t_int> image_index = std::get<0>(kmeans);
const std::vector<t_real> w_stacks = std::get<1>(kmeans);
const auto uv_stacks = utilities::regroup_and_all_to_all(uv_mpi, image_index, world);
// standard operator
const auto op_wproj = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
purify::measurementoperator::init_degrid_operator_2d<Vector<t_complex>>(
world, uv_stacks, height, width, cell_size, cell_size, over_sample, kernel, J, J, true),
100, 1e-4, power_init));
// all to all operator
const auto op_wproj_all = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
factory::all_to_all_measurement_operator_factory<Vector<t_complex>>(
factory::distributed_measurement_operator::mpi_distribute_all_to_all, image_index,
w_stacks, uv_mpi, height, width, cell_size, cell_size, over_sample, kernel, J, J, true),
100, 1e-4, power_init));
if (world.size() == 1) {
REQUIRE(uv_serial.u.isApprox(uv_mpi.u));
CHECK(uv_serial.v.isApprox(uv_mpi.v));
CHECK(uv_serial.weights.isApprox(uv_mpi.weights));
}
SECTION("Degridding") {
Vector<t_complex> const image =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(width * height));
const Vector<t_complex> degridded = *op_wproj * image;
auto uv_degrid = uv_mpi;
uv_degrid.vis = *op_wproj_all * image;
uv_degrid = utilities::regroup_and_all_to_all(uv_degrid, image_index, world);
REQUIRE(degridded.size() == uv_degrid.vis.size());
REQUIRE(degridded.isApprox(uv_degrid.vis, 1e-4));
}
SECTION("Gridding") {
Vector<t_complex> const gridded = op_wproj_all->adjoint() * uv_mpi.vis;
Vector<t_complex> const gridded_serial = op_wproj->adjoint() * uv_stacks.vis;
REQUIRE(gridded.size() == gridded_serial.size());
REQUIRE(gridded.isApprox(gridded_serial, 1e-4));
}
}
SECTION("All to All wproj") {
t_real const cell_size = 1;
const auto kmeans = distribute::kmeans_algo(uv_mpi.w, world.size(), 100, world);
const std::vector<t_int> image_index = std::get<0>(kmeans);
const std::vector<t_real> w_stacks = std::get<1>(kmeans);
const auto uv_stacks = utilities::regroup_and_all_to_all(uv_mpi, image_index, world);
// standard operator
const auto op_wproj = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
purify::measurementoperator::init_degrid_operator_2d<Vector<t_complex>>(
world, uv_stacks, height, width, cell_size, cell_size, over_sample, kernel, J, 10, true,
1e-8, 1e-8, dde_type::wkernel_radial),
100, 1e-4, power_init));
// all to all operator
const auto op_wproj_all = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
factory::all_to_all_measurement_operator_factory<Vector<t_complex>>(
factory::distributed_measurement_operator::mpi_distribute_all_to_all, image_index,
w_stacks, uv_mpi, height, width, cell_size, cell_size, over_sample, kernel, J, 100,
true, 1e-8, 1e-8, dde_type::wkernel_radial),
100, 1e-4, power_init));
if (world.size() == 1) {
REQUIRE(uv_serial.u.isApprox(uv_mpi.u));
CHECK(uv_serial.v.isApprox(uv_mpi.v));
CHECK(uv_serial.weights.isApprox(uv_mpi.weights));
}
SECTION("Degridding") {
Vector<t_complex> const image =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(width * height));
const Vector<t_complex> degridded = *op_wproj * image;
auto uv_degrid = uv_mpi;
uv_degrid.vis = *op_wproj_all * image;
uv_degrid = utilities::regroup_and_all_to_all(uv_degrid, image_index, world);
REQUIRE(degridded.size() == uv_degrid.vis.size());
REQUIRE(degridded.isApprox(uv_degrid.vis, 1e-4));
}
SECTION("Gridding") {
Vector<t_complex> const gridded = op_wproj_all->adjoint() * uv_mpi.vis;
Vector<t_complex> const gridded_serial = op_wproj->adjoint() * uv_stacks.vis;
REQUIRE(gridded.size() == gridded_serial.size());
REQUIRE(gridded.isApprox(gridded_serial, 1e-4));
}
}
}
TEST_CASE("GPU Serial vs Distributed Operator") {
purify::logging::set_level("debug");
auto const world = sopt::mpi::Communicator::World();
auto const N = 100;
auto uv_serial = utilities::random_sample_density(N, 0, constant::pi / 3);
uv_serial.u = world.broadcast(uv_serial.u);
uv_serial.v = world.broadcast(uv_serial.v);
uv_serial.w = world.broadcast(uv_serial.w);
uv_serial.units = utilities::vis_units::radians;
uv_serial.vis = world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(uv_serial.u.size()));
uv_serial.weights =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(uv_serial.u.size()));
utilities::vis_params uv_mpi;
if (world.is_root()) {
auto const order =
distribute::distribute_measurements(uv_serial, world, distribute::plan::radial);
uv_mpi = utilities::regroup_and_scatter(uv_serial, order, world);
} else
uv_mpi = utilities::scatter_visibilities(world);
auto const over_sample = 2;
auto const J = 4;
auto const kernel = kernels::kernel::kb;
auto const width = 128;
auto const height = 128;
const Vector<t_complex> power_init =
world.broadcast(Vector<t_complex>::Random(height * width).eval());
const auto op_serial = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
purify::measurementoperator::init_degrid_operator_2d<Vector<t_complex>>(
uv_serial.u, uv_serial.v, uv_serial.w, uv_serial.weights, height, width, over_sample),
100, 1e-4, power_init));
CAPTURE(world.size());
for (auto method : {factory::distributed_measurement_operator::gpu_mpi_distribute_image,
factory::distributed_measurement_operator::gpu_mpi_distribute_grid}) {
#ifndef PURIFY_ARRAYFIRE
REQUIRE_THROWS(factory::measurement_operator_factory<Vector<t_complex>>(
method, uv_mpi.u, uv_mpi.v, uv_mpi.w, uv_mpi.weights, height, width, over_sample));
#else
const auto op = std::get<2>(sopt::algorithm::normalise_operator<Vector<t_complex>>(
factory::measurement_operator_factory<Vector<t_complex>>(
method, uv_mpi.u, uv_mpi.v, uv_mpi.w, uv_mpi.weights, height, width, over_sample),
100, 1e-4, power_init));
if (uv_serial.u.size() == uv_mpi.u.size()) {
REQUIRE(uv_serial.u.isApprox(uv_mpi.u));
CHECK(uv_serial.v.isApprox(uv_mpi.v));
CHECK(uv_serial.weights.isApprox(uv_mpi.weights));
}
SECTION("Degridding") {
Vector<t_complex> const image =
world.broadcast<Vector<t_complex>>(Vector<t_complex>::Random(width * height));
auto uv_degrid = uv_serial;
if (world.is_root()) {
uv_degrid.vis = *op_serial * image;
auto const order =
distribute::distribute_measurements(uv_degrid, world, distribute::plan::radial);
uv_degrid = utilities::regroup_and_scatter(uv_degrid, order, world);
} else
uv_degrid = utilities::scatter_visibilities(world);
Vector<t_complex> const degridded = *op * image;
REQUIRE(degridded.size() == uv_degrid.vis.size());
REQUIRE(degridded.isApprox(uv_degrid.vis, 1e-4));
}
SECTION("Gridding") {
Vector<t_complex> const gridded = op->adjoint() * uv_mpi.vis;
Vector<t_complex> const gridded_serial = op_serial->adjoint() * uv_serial.vis;
REQUIRE(gridded.size() == gridded_serial.size());
REQUIRE(gridded.isApprox(gridded_serial, 1e-4));
}
#endif
}
}
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