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Use std:🧵:hardware_concurrency, instead of Boost, to determine available cores

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This commit is contained in:
fanquake 2017-04-25 09:34:23 +08:00
parent c66adb286a
commit 937bf4335b
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2 changed files with 4 additions and 8 deletions
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7
src/util.cpp
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@ -77,6 +77,7 @@
#include <openssl/crypto.h>
#include <openssl/rand.h>
#include <openssl/conf.h>
#include <thread>
// Application startup time (used for uptime calculation)
const int64_t nStartupTime = GetTime();
@ -891,11 +892,7 @@ bool SetupNetworking()
int GetNumCores()
{
#if BOOST_VERSION >= 105600
return boost::thread::physical_concurrency();
#else // Must fall back to hardware_concurrency, which unfortunately counts virtual cores
return boost::thread::hardware_concurrency();
#endif
return std::thread::hardware_concurrency();
}
std::string CopyrightHolders(const std::string& strPrefix)

5
src/util.h
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@ -295,9 +295,8 @@ std::string HelpMessageGroup(const std::string& message);
std::string HelpMessageOpt(const std::string& option, const std::string& message);
/**
* Return the number of physical cores available on the current system.
* @note This does not count virtual cores, such as those provided by HyperThreading
* when boost is newer than 1.56.
* Return the number of cores available on the current system.
* @note This does count virtual cores, such as those provided by HyperThreading.
*/
int GetNumCores();