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modified parser to work without physical id and core id #327

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modified parser to work without physical id and core id #327

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46 changes: 40 additions & 6 deletions src/affinity/cpuinfo/cpuinfo_posix.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,20 @@ inline CpuInfo getCpuInfo() {
int coreId = -1;
int physicalId = -1;

bool procIdFound = false;
bool coreIdFound = false;
bool physicalIdFound = false;

auto unset_id = [&]() {
coreId = -1;
processorId = -1;
physicalId = -1;

procIdFound = false;
coreIdFound = false;
physicalIdFound = false;
};

constexpr auto extract_value = [](const std::string& line) -> int {
size_t colonPos = line.find(':');
if (colonPos != std::string::npos) {
Expand All @@ -35,23 +49,43 @@ inline CpuInfo getCpuInfo() {

while (std::getline(cpuinfo, line)) {
if (line.find("processor") != std::string::npos) {

// Already found process ID before, but haven't pushed
if (procIdFound) {
cpu_info.physical_cpus[physicalIdFound ? physicalId : 0]
.cores[coreIdFound ? coreIdFound : 0]
.processors.emplace_back(processorId);

unset_id();
}

procIdFound = true;
processorId = extract_value(line);

} else if (line.find("core id") != std::string::npos) {
coreId = extract_value(line);
coreId = extract_value(line);
coreIdFound = true;
} else if (line.find("physical id") != std::string::npos) {
physicalId = extract_value(line);
physicalId = extract_value(line);
physicalIdFound = true;
}

if (coreId != -1 && processorId != -1 && physicalId != -1) {
cpu_info.physical_cpus[physicalId].cores[coreId].processors.emplace_back(processorId);

coreId = -1;
processorId = -1;
physicalId = -1;
unset_id();
}
}

if (procIdFound) {
cpu_info.physical_cpus[physicalIdFound ? physicalId : 0]
.cores[coreIdFound ? coreIdFound : 0]
.processors.emplace_back(processorId);

unset_id();
}

return cpu_info;
}

} // namespace fast_chess
} // namespace fast_chess