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#ifdef BTAS_HAS_BLAS_LAPACK
#include <btas/btas.h>
#include <btas/generic/converge_class.h>
#include <libgen.h>
#include <fstream>
#include <iomanip>
#include <iostream>
#include "../unittest/test.h"
#define BTAS_ENABLE_TUCKER_CP_UT 1
#define BTAS_ENABLE_RANDOM_CP_UT 0
const std::string __dirname = dirname(strdup(__FILE__));
TEST_CASE("ZCP") {
typedef btas::Tensor<double> tensor;
typedef btas::Tensor<std::complex<double>> ztensor;
using zconv_class = btas::FitCheck<ztensor>;
// using conv_class = btas::FitCheck<tensor>;
using conv_class_coupled = btas::CoupledFitCheck<tensor>;
using btas::COUPLED_CP_ALS;
using btas::CP_ALS;
using btas::CP_DF_ALS;
using btas::CP_RALS;
// double epsilon = fmax(1e-10, std::numeric_limits<double>::epsilon());
double epsilon = 1e-5;
ztensor Z3(3, 2, 4);
std::ifstream inp3(__dirname + "/z-mat3D.txt");
if (inp3.is_open()) {
int i, j, k;
double rel, img;
while (inp3) {
inp3 >> i >> j >> k >> rel >> img;
std::complex<double> val(rel, img);
Z3(i, j, k) = val;
}
}
ztensor Z4(4, 2, 7, 3);
std::ifstream inp4(__dirname + "/z-mat4D.txt");
if (inp4.is_open()) {
int i, j, k, l;
double rel, img;
while (inp4) {
inp4 >> i >> j >> k >> l >> rel >> img;
std::complex<double> val(rel, img);
Z4(i, j, k, l) = val;
}
}
tensor results(43, 1);
std::ifstream res(__dirname + "/cp_test_results.txt");
CHECK(res.is_open());
for (auto &i : results) {
res >> i;
}
ztensor Z44(Z4.extent(1), Z4.extent(2), Z4.extent(3), Z4.extent(1), Z4.extent(2), Z4.extent(3));
ztensor Z33(Z3.extent(1), Z3.extent(2), Z3.extent(1), Z3.extent(2));
std::complex<double> one{1.0, 0.0};
std::complex<double> zero{0.0, 0.0};
contract(one, Z3, {1,2,3}, Z3, {1,4,5}, zero, Z33, {2,3,4,5});
contract(one, Z4, {1, 2, 3, 4}, Z4.conj(), {1, 5, 6, 7}, zero, Z44, {2, 3, 4, 5, 6, 7});
std::complex<double> norm4 = sqrt(dot(Z4, Z4));
std::complex<double> norm42 = sqrt(dot(Z44, Z44));
std::complex<double> norm3 = sqrt(dot(Z3, Z3));
std::complex<double> norm32 = sqrt(dot(Z33, Z33));
zconv_class conv(1e-3);
// ALS tests
{
SECTION("ALS MODE = 3, Finite error") {
CP_ALS<ztensor, zconv_class> A1(Z3);
conv.set_norm(norm3.real());
double diff = A1.compute_error(conv, 1e-6, 1, 11,false,0,100);
CHECK(std::abs(diff) <= epsilon);
}
SECTION("ALS MODE = 3, Finite rank") {
CP_ALS<ztensor, zconv_class> A1(Z3);
conv.set_norm(norm3.real());
double diff = A1.compute_rank(11, conv, 1, false, 0, 100);
CHECK(std::abs(diff) <= epsilon);
}
#if BTAS_ENABLE_TUCKER_CP_UT
SECTION("ALS MODE = 3, Tucker + CP") {
auto d = Z3;
btas::TUCKER_CP_ALS<ztensor, zconv_class> A1(d, 1e-3);
conv.set_norm(norm3.real());
double diff = A1.compute_rank(6, conv, 1, false, 0, 100);
CHECK(std::abs(diff) <= epsilon);
conv.verbose(false);
}
#endif
SECTION("ALS MODE = 4, Finite error") {
CP_ALS<ztensor, zconv_class> A1(Z4);
conv.set_norm(norm4.real());
double diff = A1.compute_error(conv, 1e-2, 1, 100, true, 57);
CHECK(std::abs(diff) <= /* NB error too large with netlib blas on linux */ 3 * epsilon);
}
SECTION("ALS MODE = 4, Finite rank") {
CP_ALS<ztensor, zconv_class> A1(Z4);
conv.set_norm(norm4.real());
double diff = A1.compute_rank(57, conv, 1, true, 57);
CHECK(std::abs(diff) <= /* NB error too large with netlib blas on linux */ 3 * epsilon);
}
#if BTAS_ENABLE_TUCKER_CP_UT
SECTION("ALS MODE = 4, Tucker + CP") {
auto d = Z4;
btas::TUCKER_CP_ALS<ztensor, zconv_class> A1(d, 1e-3);
conv.set_norm(norm4.real());
double diff = A1.compute_rank(58, conv, 1, true, 58);
CHECK(std::abs(diff) <= epsilon);
}
#endif
}
// RALS TESTS
{
SECTION("RALS MODE = 3, Finite rank") {
CP_RALS<ztensor, zconv_class> A1(Z3);
conv.set_norm(norm3.real());
double diff = A1.compute_rank(12, conv);
CHECK(std::abs(diff) <= epsilon);
}
SECTION("RALS MODE = 3, Finite error") {
CP_RALS<ztensor, zconv_class> A1(Z3);
conv.set_norm(norm3.real());
double diff = A1.compute_error(conv, 1e-2, 1, 13, true, 12);
CHECK(std::abs(diff) <= epsilon);
}
#if BTAS_ENABLE_TUCKER_CP_UT
SECTION("RALS MODE = 3, Tucker + CP") {
auto d = Z3;
btas::TUCKER_CP_RALS<ztensor, zconv_class> A1(d, 1e-3);
conv.set_norm(norm3.real());
double diff = A1.compute_rank(13, conv, 1, true, 13);
CHECK(std::abs(diff) <= epsilon);
}
#endif
SECTION("RALS MODE = 4, Finite rank") {
CP_RALS<ztensor, zconv_class> A1(Z4);
conv.set_norm(norm4.real());
double diff = A1.compute_rank(67, conv, 1, true, 65);
CHECK(std::abs(diff) <= epsilon);
}
SECTION("RALS MODE = 4, Finite error"){
CP_RALS<ztensor, zconv_class> A1(Z4);
conv.set_norm(norm4.real());
double diff = A1.compute_error(conv, 1e-5, 1, 67, true, 65);
CHECK(std::abs(diff) <= epsilon);
}
#if BTAS_ENABLE_TUCKER_CP_UT
SECTION("RALS MODE = 4, Tucker + CP"){
auto d = Z4;
btas::TUCKER_CP_RALS<ztensor, zconv_class > A1(d, 1e-3);
conv.set_norm(norm4.real());
double diff = A1.compute_rank(67, conv, 1, true, 67);
CHECK(std::abs(diff) <= epsilon);
}
#endif
}
}
#endif
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