128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 4.0
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// Copyright (2022) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
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// See https://kokkos.org/LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//@HEADER
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template <class Scalar>
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struct Run<Scalar, UNROLL, STRIDE> {
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static void run(int N, int K, int R, int F, int T, int S, int Ba, int I) {
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Kokkos::View<Scalar** [STRIDE], Kokkos::LayoutRight> A("A", N, K);
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Kokkos::View<Scalar** [STRIDE], Kokkos::LayoutRight> B("B", N, K);
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Kokkos::View<Scalar** [STRIDE], Kokkos::LayoutRight> C("C", N, K);
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Kokkos::deep_copy(A, Scalar(1.5));
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Kokkos::deep_copy(B, Scalar(2.5));
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Kokkos::deep_copy(C, Scalar(3.5));
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Kokkos::Timer timer;
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for (int iter = 0; iter < I; ++iter) {
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Kokkos::parallel_for(
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"BenchmarkKernel",
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Kokkos::TeamPolicy<>(N, T).set_scratch_size(0, Kokkos::PerTeam(S)),
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KOKKOS_LAMBDA(const Kokkos::TeamPolicy<>::member_type& team) {
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const int n = team.league_rank();
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for (int r = 0; r < R; r++) {
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Kokkos::parallel_for(
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Kokkos::TeamThreadRange(team, 0, K), [&](const int& i) {
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Scalar a1 = A(n, i, 0);
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const Scalar b = B(n, i, 0);
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#if (UNROLL > 1)
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Scalar a2 = a1 * static_cast<Scalar>(1.3);
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#endif
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#if (UNROLL > 2)
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Scalar a3 = a2 * static_cast<Scalar>(1.1);
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#endif
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#if (UNROLL > 3)
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Scalar a4 = a3 * static_cast<Scalar>(1.1);
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#endif
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#if (UNROLL > 4)
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Scalar a5 = a4 * static_cast<Scalar>(1.3);
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#endif
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#if (UNROLL > 5)
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Scalar a6 = a5 * static_cast<Scalar>(1.1);
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#endif
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#if (UNROLL > 6)
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Scalar a7 = a6 * static_cast<Scalar>(1.1);
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#endif
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#if (UNROLL > 7)
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Scalar a8 = a7 * static_cast<Scalar>(1.1);
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#endif
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for (int f = 0; f < F; f++) {
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a1 += b * a1;
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#if (UNROLL > 1)
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a2 += b * a2;
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#endif
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#if (UNROLL > 2)
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a3 += b * a3;
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#endif
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#if (UNROLL > 3)
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a4 += b * a4;
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#endif
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#if (UNROLL > 4)
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a5 += b * a5;
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#endif
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#if (UNROLL > 5)
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a6 += b * a6;
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#endif
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#if (UNROLL > 6)
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a7 += b * a7;
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#endif
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#if (UNROLL > 7)
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a8 += b * a8;
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#endif
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}
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#if (UNROLL == 1)
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C(n, i, 0) = a1;
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#endif
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#if (UNROLL == 2)
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C(n, i, 0) = a1 + a2;
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#endif
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#if (UNROLL == 3)
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C(n, i, 0) = a1 + a2 + a3;
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#endif
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#if (UNROLL == 4)
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C(n, i, 0) = a1 + a2 + a3 + a4;
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#endif
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#if (UNROLL == 5)
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C(n, i, 0) = a1 + a2 + a3 + a4 + a5;
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#endif
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#if (UNROLL == 6)
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C(n, i, 0) = a1 + a2 + a3 + a4 + a5 + a6;
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#endif
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#if (UNROLL == 7)
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C(n, i, 0) = a1 + a2 + a3 + a4 + a5 + a6 + a7;
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#endif
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#if (UNROLL == 8)
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C(n, i, 0) = a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8;
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#endif
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});
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}
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});
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}
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Kokkos::fence();
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double seconds = timer.seconds() / static_cast<double>(I);
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double bytes = 1.0 * N * K * R * 3 * sizeof(Scalar);
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bytes /= ((Ba == 2) ? (1024 * 1024 * 1024) : (1000 * 1000 * 1000));
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double flops = 1.0 * N * K * R * (F * 2 * UNROLL + 2 * (UNROLL - 1));
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printf(
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"NKRUFTSBI: %i %i %i %i %i %i %i %i %i Time: %lfs Bandwidth: %lf%s "
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"GFlop/s: "
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"%lf\n",
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N, K, R, UNROLL, F, T, S, Ba, I, seconds, 1.0 * bytes / seconds,
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Ba == 2 ? "GiB/s" : "GB/s", 1.e-9 * flops / seconds);
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}
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};
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