System Utilities¶
These classes define system utility methods.
Defined in src/utils/SysUtils.h
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class Caesar::SysUtils : public TObject¶
Public Functions
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SysUtils()¶
Class constructor: initialize structures.
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virtual ~SysUtils()¶
Class destructor: free allocated memory.
Public Static Functions
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static bool CheckFile(std::string path, FileInfo &info, bool match_extension = false, std::string extension = "")¶
Check if a file exists in filesystem.
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static bool CheckDir(std::string path)¶
Check if directory exists in filesystem.
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static inline timespec TimeDiff(timespec start, timespec end)¶
Compute the difference between two timestamps.
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static inline timespec TimeSum(timespec time1, timespec time2)¶
Compute the sum of two timestamps.
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static inline std::string GetISOTimestamp()¶
Get current timestamp in ISO 8601 format string.
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static inline double TimeToSec(timespec time)¶
Convert a timestamp to seconds.
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static inline double TimeToNSec(timespec time)¶
Convert a timestamp to nanoseconds.
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static int GetFITSImageSize(const std::string &filename, long int &Nx, long int &Ny)¶
Get the size of a FITS image.
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static int GetNCores()¶
Get the number of cores in system.
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static void SetOMPThreads(int nthreads)¶
Set the number of threads to be used by OpenMP (if enabled at build)
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static int GetOMPThreads()¶
Get the number of threads currently used by OpenMP (return 0 if OMP is disabled at build)
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static int GetOMPMaxThreads()¶
Get the maximum number of threads that can be used by OpenMP (return 0 if OMP is disabled at build)
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static int GetOMPCores()¶
Get the number of cores currently used by OpenMP (return 0 if OMP is disabled at build)
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static int GetOMPThreadId()¶
Get thread id (return 0 if OMP is disabled at build)
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static bool IsMPIInitialized()¶
Is MPI run initialized (return 0 if MPI is disabled at build)
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static bool IsMPIFinalized()¶
Is MPI run finalized (return true if MPI is disabled at build)
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static int GetProcMemoryInfo(ProcMemInfo &info)¶
Get process used virtual memory.
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static std::string GetHost()¶
Get hostname.
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static int GetProcId()¶
Get processor id.
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static std::string GetAsciiLogo()¶
Get ascii art logo.
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static void PrintAsciiLogo()¶
Print ascii art logo.
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SysUtils()¶
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class FileInfo : public TObject¶
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class Caesar::ProcMemInfo : public TObject¶
Public Functions
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inline ProcMemInfo()¶
ProcMemInfo constructor.
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inline virtual ~ProcMemInfo()¶
ProcMemInfo destructor.
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inline std::string GetPrintable()¶
Get process mem info in printable string form.
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inline void PrintInfo()¶
Print process mem info.
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inline ProcMemInfo()¶