Kokkos_grow.hpp

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// Copyright 2024 Sebastian Eibl
//
// 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
//
//     https://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.
 
#pragma once
 
#include <Kokkos_Core.hpp>
#include <cassert>
 
namespace mrmd
{
namespace util
{
template <class T, class... P>
void grow(Kokkos::View<T, P...>& view, idx_t size, real_t safetyMargin = 1.1_r)
{
    assert(size >= 0);
 
    if (view.extent(0) <= static_cast<unsigned long>(size))
    {
        Kokkos::resize(view, idx_c(real_c(size) * safetyMargin));
    }
 
    assert(view.extent(0) >= static_cast<unsigned long>(size));
}
}  // namespace util
}  // namespace mrmd