NUMA++ 0.11.0
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allocExample.cpp
1#include <numapp/memory.hpp>
2#include <numapp/mempolicy.hpp>
3
4void* BindAlloc(std::size_t size, int node, std::error_code& ec) {
5 using namespace numapp;
6
7 MemPolicy policy = MemPolicy::MakeBindNode(node);
8 void* ptr = Allocate(size, policy, MemPolicyFlag::Strict, ec);
9 if (ec) {
10 return nullptr;
11 }
12 ec = MemLock(ptr, size, LockFlag::PreFault);
13 if (ec) {
14 return nullptr;
15 }
16 return ptr;
17}
numapp::MemPolicy
Class representing a memory policy that can be modified and used to apply to the current thread or a ...
Definition mempolicy.hpp:174
numapp::MemPolicy::MakeBindNode
static MemPolicy MakeBindNode(int node)
Creates a strict policy (using MPOL_BIND) to allocate all memory to the specified node.
numapp::MemLock
std::error_code MemLock(void const *addr, std::size_t len, LockFlag flag) noexcept
Lock memory pages in the specified address range.
Definition memory.cpp:58
numapp::Allocate
void * Allocate(std::size_t size, MemPolicy const &policy, std::error_code &ec) noexcept
See group for details.
Definition memory.cpp:87
numapp::LockFlag::PreFault
@ PreFault
Locks pages whether they are resident or not.
Definition memory.hpp:126
memory.hpp
Contains memory function declarations.
mempolicy.hpp
Contains declarations for numapp::MemPolicy.