#include <gromacs/utility/include/gromacs/utility/alignedallocator.h>
Policy class for configuring gmx::Allocator, to manage allocations of page-aligned memory that can be locked for asynchronous transfer to GPU devices.
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using | is_always_equal = std::true_type |
| Stateless allocation policies are always equal.
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std::size_t gmx::PageAlignedAllocationPolicy::alignment |
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Return the alignment size of memory pages on this system.
Queries sysconf/WinAPI, otherwise guesses 4096.
void gmx::PageAlignedAllocationPolicy::free |
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void * |
p | ) |
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void * gmx::PageAlignedAllocationPolicy::malloc |
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std::size_t |
bytes | ) |
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static |
Allocate memory aligned to alignment() bytes.
- Parameters
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bytes | Amount of memory (bytes) to allocate. It is valid to ask for 0 bytes, which will return a non-null pointer that is properly aligned and padded (but that you should not use). |
- Returns
- Valid pointer if the allocation worked, otherwise nullptr.
- Note
- Memory allocated with this routine must be released with gmx::PageAlignedAllocationPolicy::free(), and absolutely not the system free().
The documentation for this class was generated from the following files: