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Add macOS compatibility for CPU core detection #72

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15 changes: 12 additions & 3 deletions src/process_argv.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,11 @@
#include <map>
#include <fstream>
#include "global_parameter.h"
#ifdef __APPLE__
#include <unistd.h>
#else
#include "sys/sysinfo.h"
#endif
// #include <string>
using namespace ::std;
#define ADA_RATIO 0.4
Expand Down Expand Up @@ -902,12 +906,17 @@ bool check_parameter(int argc, char *argv[], C_global_parameter &gp)
{
gp.clean_file_reads = gp.l_total_reads_num;
}
if (gp.threads_num > get_nprocs())
#ifdef __APPLE__
long nprocs = sysconf(_SC_NPROCESSORS_ONLN);
#else
int nprocs = get_nprocs();
#endif
if (gp.threads_num > nprocs)
{
gp.threads_num = get_nprocs();
gp.threads_num = nprocs;
cerr << "Warning:threads number exceeds the system cpu number" << endl;
// exit(1);
}
}
if (gp.patchSize > 5000000)
{
cerr << "Error:patchSize cannot exceed 5M considering memory usage" << endl;
Expand Down