Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

identity tests on odd numbers #21

Merged
merged 1 commit into from
Jan 8, 2024
Merged

identity tests on odd numbers #21

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
82 changes: 57 additions & 25 deletions fft/unit_test/Test_Transform.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -115,41 +115,79 @@ TYPED_TEST_SUITE(FFTND, test_types);
// Tests for 1D FFT
template <typename T, typename LayoutType>
void test_fft1_identity(T atol = 1.0e-12) {
const int maxlen = 30;
const int maxlen = 32;
using RealView1DType = Kokkos::View<T*, LayoutType, execution_space>;
using ComplexView1DType =
Kokkos::View<Kokkos::complex<T>*, LayoutType, execution_space>;

ComplexView1DType a("a", maxlen), _a("_a", maxlen), a_ref("a_ref", maxlen);
ComplexView1DType out("out", maxlen), outr("outr", maxlen / 2 + 1);
RealView1DType ar("ar", maxlen), _ar("_ar", maxlen), ar_ref("ar_ref", maxlen);
for (int i = 1; i < maxlen; i++) {
ComplexView1DType a("a", i), _a("_a", i), a_ref("a_ref", i);
ComplexView1DType out("out", i), outr("outr", i / 2 + 1);
RealView1DType ar("ar", i), _ar("_ar", i), ar_ref("ar_ref", i);

const Kokkos::complex<T> I(1.0, 1.0);
Kokkos::Random_XorShift64_Pool<> random_pool(/*seed=*/12345);
Kokkos::fill_random(a, random_pool, I);
Kokkos::fill_random(ar, random_pool, 1.0);
Kokkos::deep_copy(a_ref, a);
Kokkos::deep_copy(ar_ref, ar);
const Kokkos::complex<T> I(1.0, 1.0);
Kokkos::Random_XorShift64_Pool<> random_pool(/*seed=*/12345);
Kokkos::fill_random(a, random_pool, I);
Kokkos::fill_random(ar, random_pool, 1.0);
Kokkos::deep_copy(a_ref, a);
Kokkos::deep_copy(ar_ref, ar);

Kokkos::fence();
Kokkos::fence();

KokkosFFT::fft(execution_space(), a, out);
KokkosFFT::ifft(execution_space(), out, _a);
KokkosFFT::fft(execution_space(), a, out);
KokkosFFT::ifft(execution_space(), out, _a);

KokkosFFT::rfft(execution_space(), ar, outr);
KokkosFFT::irfft(execution_space(), outr, _ar);
KokkosFFT::rfft(execution_space(), ar, outr);
KokkosFFT::irfft(execution_space(), outr, _ar);

EXPECT_TRUE(allclose(_a, a_ref, 1.e-5, atol));
EXPECT_TRUE(allclose(_ar, ar_ref, 1.e-5, atol));
EXPECT_TRUE(allclose(_a, a_ref, 1.e-5, atol));
EXPECT_TRUE(allclose(_ar, ar_ref, 1.e-5, atol));
}
}

template <typename T, typename LayoutType>
void test_fft1_identity_reuse_plan(T atol = 1.0e-12) {
const int maxlen = 30;
const int maxlen = 32;
using RealView1DType = Kokkos::View<T*, LayoutType, execution_space>;
using ComplexView1DType =
Kokkos::View<Kokkos::complex<T>*, LayoutType, execution_space>;

for (int i = 1; i < maxlen; i++) {
ComplexView1DType a("a", i), _a("_a", i), a_ref("a_ref", i);
ComplexView1DType out("out", i), outr("outr", i / 2 + 1);
RealView1DType ar("ar", i), _ar("_ar", i), ar_ref("ar_ref", i);

const Kokkos::complex<T> I(1.0, 1.0);
Kokkos::Random_XorShift64_Pool<> random_pool(/*seed=*/12345);
Kokkos::fill_random(a, random_pool, I);
Kokkos::fill_random(ar, random_pool, 1.0);
Kokkos::deep_copy(a_ref, a);
Kokkos::deep_copy(ar_ref, ar);

Kokkos::fence();

int axis = -1;
KokkosFFT::Impl::Plan fft_plan(execution_space(), a, out,
KokkosFFT::Impl::Direction::Forward, axis);
KokkosFFT::fft(execution_space(), a, out, fft_plan);

KokkosFFT::Impl::Plan ifft_plan(execution_space(), out, _a,
KokkosFFT::Impl::Direction::Backward, axis);
KokkosFFT::ifft(execution_space(), out, _a, ifft_plan);

KokkosFFT::Impl::Plan rfft_plan(execution_space(), ar, outr,
KokkosFFT::Impl::Direction::Forward, axis);
KokkosFFT::rfft(execution_space(), ar, outr, rfft_plan);

KokkosFFT::Impl::Plan irfft_plan(execution_space(), outr, _ar,
KokkosFFT::Impl::Direction::Backward,
axis);
KokkosFFT::irfft(execution_space(), outr, _ar, irfft_plan);

EXPECT_TRUE(allclose(_a, a_ref, 1.e-5, atol));
EXPECT_TRUE(allclose(_ar, ar_ref, 1.e-5, atol));
}

ComplexView1DType a("a", maxlen), _a("_a", maxlen), a_ref("a_ref", maxlen);
ComplexView1DType out("out", maxlen), outr("outr", maxlen / 2 + 1);
RealView1DType ar("ar", maxlen), _ar("_ar", maxlen), ar_ref("ar_ref", maxlen);
Expand All @@ -163,25 +201,19 @@ void test_fft1_identity_reuse_plan(T atol = 1.0e-12) {

Kokkos::fence();

// Create correct plans
int axis = -1;
KokkosFFT::Impl::Plan fft_plan(execution_space(), a, out,
KokkosFFT::Impl::Direction::Forward, axis);
KokkosFFT::fft(execution_space(), a, out, fft_plan);

KokkosFFT::Impl::Plan ifft_plan(execution_space(), out, _a,
KokkosFFT::Impl::Direction::Backward, axis);
KokkosFFT::ifft(execution_space(), out, _a, ifft_plan);

KokkosFFT::Impl::Plan rfft_plan(execution_space(), ar, outr,
KokkosFFT::Impl::Direction::Forward, axis);
KokkosFFT::rfft(execution_space(), ar, outr, rfft_plan);

KokkosFFT::Impl::Plan irfft_plan(execution_space(), outr, _ar,
KokkosFFT::Impl::Direction::Backward, axis);
KokkosFFT::irfft(execution_space(), outr, _ar, irfft_plan);

EXPECT_TRUE(allclose(_a, a_ref, 1.e-5, atol));
EXPECT_TRUE(allclose(_ar, ar_ref, 1.e-5, atol));

// Check if errors are correctly raised aginst wrong axis
int wrong_axis = 0;
Expand Down