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刚刚找到了一个更好的解决方案，它利用了WMI的命令行界面。

运行以下命令并解析输出，每个插槽有一行

> wmic.exe cpu get
AddressWidth  Architecture  Availability  Caption                               ConfigManagerErrorCode  ConfigManagerUserConfig  CpuStatus  CreationClassName  CurrentClockSpeed  CurrentVoltage  DataWidth  Description                           DeviceID  ErrorCleared  ErrorDescription  ExtClock  Family  InstallDate  L2CacheSize  L2CacheSpeed  L3CacheSize  L3CacheSpeed  LastErrorCode  Level  LoadPercentage  Manufacturer  MaxClockSpeed  Name                                             NumberOfCores  NumberOfLogicalProcessors  OtherFamilyDescription  PNPDeviceID  PowerManagementCapabilities  PowerManagementSupported  ProcessorId       ProcessorType  Revision  Role  SocketDesignation  Status  StatusInfo  Stepping  SystemCreationClassName  SystemName       UniqueId  UpgradeMethod  Version  VoltageCaps  
64            9             3             Intel64 Family 6 Model 23 Stepping 6                                                   1          Win32_Processor    2532               33              64         Intel64 Family 6 Model 23 Stepping 6  CPU0                                      421       2                                               0            0                            6      1               GenuineIntel  2532           Intel(R) Core(TM)2 Duo CPU     T9400  @ 2.53GHz  2              2                                                                                            FALSE                     BFEBFBFF00010676  3              5894      CPU   CPU Socket #0      OK      3                     Win32_ComputerSystem     CHBROSSO-WIN7VM            1                       2

在C ++中运行exe和解析输出应该是简单的部分。您还可以使用POCO库或Boost.Process来获得更清晰的代码。

（这是未经测试的代码）

//get wmic program output 
FILE* pipe = _popen("wmic.exe cpu get", "r");
if (!pipe) throw std::exception("error");
char buffer[128];
std::string output;
while(!feof(pipe)) {
  if(fgets(buffer, 128, pipe) != NULL)
      output += buffer;
}
_pclose(pipe);

//split lines to a vector<string>
std::stringstream oss(output);
std::vector<std::string> processor_description; std::string buffer;
while (std::getline(oss, buffer))
  processor_description.push_back(buffer);
//processor_description has n+1 elements, n being nb of sockets, +1 is the header of columns

Answer 2

你会发现使用C ++的套接字数量。 https://msdn.microsoft.com/en-us/library/windows/desktop/ms683194(v=vs.85).aspx

#include <windows.h>
#include <malloc.h>    
#include <stdio.h>
#include <tchar.h>

typedef BOOL (WINAPI *LPFN_GLPI)(
    PSYSTEM_LOGICAL_PROCESSOR_INFORMATION, 
    PDWORD);


// Helper function to count set bits in the processor mask.
DWORD CountSetBits(ULONG_PTR bitMask)
{
    DWORD LSHIFT = sizeof(ULONG_PTR)*8 - 1;
    DWORD bitSetCount = 0;
    ULONG_PTR bitTest = (ULONG_PTR)1 << LSHIFT;    
    DWORD i;

    for (i = 0; i <= LSHIFT; ++i)
    {
        bitSetCount += ((bitMask & bitTest)?1:0);
        bitTest/=2;
    }

    return bitSetCount;
}

int _cdecl _tmain ()
{
    LPFN_GLPI glpi;
    BOOL done = FALSE;
    PSYSTEM_LOGICAL_PROCESSOR_INFORMATION buffer = NULL;
    PSYSTEM_LOGICAL_PROCESSOR_INFORMATION ptr = NULL;
    DWORD returnLength = 0;
    DWORD logicalProcessorCount = 0;
    DWORD numaNodeCount = 0;
    DWORD processorCoreCount = 0;
    DWORD processorL1CacheCount = 0;
    DWORD processorL2CacheCount = 0;
    DWORD processorL3CacheCount = 0;
    DWORD processorPackageCount = 0;
    DWORD byteOffset = 0;
    PCACHE_DESCRIPTOR Cache;

    glpi = (LPFN_GLPI) GetProcAddress(
                            GetModuleHandle(TEXT("kernel32")),
                            "GetLogicalProcessorInformation");
    if (NULL == glpi) 
    {
        _tprintf(TEXT("\nGetLogicalProcessorInformation is not supported.\n"));
        return (1);
    }

    while (!done)
    {
        DWORD rc = glpi(buffer, &returnLength);

        if (FALSE == rc) 
        {
            if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) 
            {
                if (buffer) 
                    free(buffer);

                buffer = (PSYSTEM_LOGICAL_PROCESSOR_INFORMATION)malloc(
                        returnLength);

                if (NULL == buffer) 
                {
                    _tprintf(TEXT("\nError: Allocation failure\n"));
                    return (2);
                }
            } 
            else 
            {
                _tprintf(TEXT("\nError %d\n"), GetLastError());
                return (3);
            }
        } 
        else
        {
            done = TRUE;
        }
    }

    ptr = buffer;

    while (byteOffset + sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION) <= returnLength) 
    {
        switch (ptr->Relationship) 
        {
        case RelationNumaNode:
            // Non-NUMA systems report a single record of this type.
            numaNodeCount++;
            break;

        case RelationProcessorCore:
            processorCoreCount++;

            // A hyperthreaded core supplies more than one logical processor.
            logicalProcessorCount += CountSetBits(ptr->ProcessorMask);
            break;

        case RelationCache:
            // Cache data is in ptr->Cache, one CACHE_DESCRIPTOR structure for each cache. 
            Cache = &ptr->Cache;
            if (Cache->Level == 1)
            {
                processorL1CacheCount++;
            }
            else if (Cache->Level == 2)
            {
                processorL2CacheCount++;
            }
            else if (Cache->Level == 3)
            {
                processorL3CacheCount++;
            }
            break;

        case RelationProcessorPackage:
            // Logical processors share a physical package.
            processorPackageCount++;
            break;

        default:
            _tprintf(TEXT("\nError: Unsupported LOGICAL_PROCESSOR_RELATIONSHIP value.\n"));
            break;
        }
        byteOffset += sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
        ptr++;
    }

    _tprintf(TEXT("\nGetLogicalProcessorInformation results:\n"));
    _tprintf(TEXT("Number of NUMA nodes: %d\n"), 
            numaNodeCount);
    _tprintf(TEXT("Number of physical processor sockets: %d\n"), 
            processorPackageCount);
    _tprintf(TEXT("Number of processor cores: %d\n"), 
            processorCoreCount);
    _tprintf(TEXT("Number of logical processors: %d\n"), 
            logicalProcessorCount);
    _tprintf(TEXT("Number of processor L1/L2/L3 caches: %d/%d/%d\n"), 
            processorL1CacheCount,
            processorL2CacheCount,
            processorL3CacheCount);

    free(buffer);

    return 0;
}

查找服务器计算机中的物理CPU套接字数

2 个答案:

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