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37 * Implements the ForceBuffers class
39 * \author Berk Hess <hess@kth.se>
40 * \ingroup module_mdtypes
45 #include "forcebuffers.h"
47 #include "gromacs/gpu_utils/hostallocator.h"
52 ForceBuffers::ForceBuffers() :
53 force_({}), forceMtsCombined_({}), view_({}, {}, false), useForceMtsCombined_(false)
57 ForceBuffers::ForceBuffers(const bool useForceMtsCombined, const PinningPolicy pinningPolicy) :
58 force_({}, { pinningPolicy }),
59 forceMtsCombined_({}),
60 view_({}, {}, useForceMtsCombined),
61 useForceMtsCombined_(useForceMtsCombined)
65 ForceBuffers::~ForceBuffers() = default;
67 ForceBuffers& ForceBuffers::operator=(ForceBuffers const& o)
69 auto oForce = o.view().force();
70 resize(oForce.size());
71 std::copy(oForce.begin(), oForce.end(), view().force().begin());
76 PinningPolicy ForceBuffers::pinningPolicy() const
78 return force_.get_allocator().pinningPolicy();
81 void ForceBuffers::resize(int numAtoms)
83 force_.resizeWithPadding(numAtoms);
84 if (useForceMtsCombined_)
86 forceMtsCombined_.resizeWithPadding(numAtoms);
88 view_ = ForceBuffersView(
89 force_.arrayRefWithPadding(), forceMtsCombined_.arrayRefWithPadding(), useForceMtsCombined_);