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Mujoco_WASM/test/engine/engine_util_sparse_test.cc
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Alessio Quaglino 7b0fbc63f8 Speed improvement with no AVX. 40% on Linux Intel Xeon and 60% on ARM Mac.
PiperOrigin-RevId: 488360660
Change-Id: I423269cd362fdcc2434393b691638ac6ed778ef2
2022-11-14 07:31:32 -08:00

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// Copyright 2022 DeepMind Technologies Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Tests for engine/engine_util_sparse.c
#include "src/engine/engine_util_sparse.h"
#include <gtest/gtest.h>
#include "test/fixture.h"
namespace mujoco {
namespace {
using EngineUtilSparseTest = MujocoTest;
TEST_F(EngineUtilSparseTest, MjuDot) {
mjtNum a[] = {1, 2, 3, 4, 5, 6, 7};
mjtNum b[] = {7, 0, 6, 0, 0, 5, 0, 0, 0, 4, 0, 0, 0, 3, 0, 0, 2, 0, 1};
int i[] = {0, 2, 5, 9, 13, 16, 18};
// test various vector lengths as mju_dotSparse adds numbers in groups of four
EXPECT_EQ(mju_dotSparse(a, b, 0, i), 0);
EXPECT_EQ(mju_dotSparse(a, b, 1, i), 7);
EXPECT_EQ(mju_dotSparse(a, b, 2, i), 7 + 2*6);
EXPECT_EQ(mju_dotSparse(a, b, 3, i), 7 + 2*6 + 3*5);
EXPECT_EQ(mju_dotSparse(a, b, 4, i), 7 + 2*6 + 3*5 + 4*4);
EXPECT_EQ(mju_dotSparse(a, b, 5, i), 7 + 2*6 + 3*5 + 4*4 + 5*3);
EXPECT_EQ(mju_dotSparse(a, b, 6, i), 7 + 2*6 + 3*5 + 4*4 + 5*3 + 6*2);
EXPECT_EQ(mju_dotSparse(a, b, 7, i), 7 + 2*6 + 3*5 + 4*4 + 5*3 + 6*2 + 7);
}
} // namespace
} // namespace mujoco