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Merge topic 'update-kwsys'

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e57c4116ac Merge branch 'upstream-KWSys' into update-kwsys
1ba07ff0f8 KWSys 2021-04-26 (642ddfcc)

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6047
This commit is contained in:
Brad King
2021-04-27 17:52:10 +00:00
committed by Kitware Robot
parent e578ed1275 e57c4116ac
commit 20b2bf0047
1 changed files with 19 additions and 2 deletions
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21
Source/kwsys/SystemInformation.cxx
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@@ -3472,6 +3472,10 @@ bool SystemInformationImplementation::RetreiveInformationFromCpuInfoFile()
// We want to record the total number of cores in this->NumberOfPhysicalCPU
// (checking only the first proc)
std::string Cores = this->ExtractValueFromCpuInfoFile(buffer, "cpu cores");
if (Cores.empty()) {
// Linux Sparc is different
Cores = this->ExtractValueFromCpuInfoFile(buffer, "ncpus probed");
}
auto NumberOfCoresPerSocket = (unsigned int)atoi(Cores.c_str());
NumberOfCoresPerSocket = std::max(NumberOfCoresPerSocket, 1u);
this->NumberOfPhysicalCPU =
@@ -3490,6 +3494,9 @@ bool SystemInformationImplementation::RetreiveInformationFromCpuInfoFile()
if (this->NumberOfPhysicalCPU <= 0) {
this->NumberOfPhysicalCPU = 1;
}
if (this->NumberOfLogicalCPU == 0) {
this->NumberOfLogicalCPU = this->NumberOfPhysicalCPU;
}
// LogicalProcessorsPerPhysical>1 => SMT.
this->Features.ExtendedFeatures.LogicalProcessorsPerPhysical =
this->NumberOfLogicalCPU / this->NumberOfPhysicalCPU;
@@ -3503,8 +3510,18 @@ bool SystemInformationImplementation::RetreiveInformationFromCpuInfoFile()
else {
// Linux Sparc: CPU speed is in Hz and encoded in hexadecimal
CPUSpeed = this->ExtractValueFromCpuInfoFile(buffer, "Cpu0ClkTck");
this->CPUSpeedInMHz =
static_cast<float>(strtoull(CPUSpeed.c_str(), nullptr, 16)) / 1000000.0f;
if (!CPUSpeed.empty()) {
this->CPUSpeedInMHz =
static_cast<float>(strtoull(CPUSpeed.c_str(), nullptr, 16)) /
1000000.0f;
} else {
// if the kernel is build as Sparc32 it's in decimal, note the different
// case
CPUSpeed = this->ExtractValueFromCpuInfoFile(buffer, "CPU0ClkTck");
this->CPUSpeedInMHz =
static_cast<float>(strtoull(CPUSpeed.c_str(), nullptr, 10)) /
1000000.0f;
}
}
#endif