Moved SystemInfo class out of the Devices namespace

It has nothing to do with devices.

src/Benchmarks/Benchmarks.h

@@ -23,7 +23,7 @@
 #include <TNL/String.h>
 
 #include <TNL/Devices/Host.h>
-#include <TNL/Devices/SystemInfo.h>
+#include <TNL/SystemInfo.h>
 #include <TNL/Cuda/DeviceInfo.h>
 #include <TNL/Config/ConfigDescription.h>
 #include <TNL/Communicators/MpiCommunicator.h>
@@ -333,7 +333,7 @@ protected:
 Benchmark::MetadataMap getHardwareMetadata()
 {
    const int cpu_id = 0;
-   Devices::CacheSizes cacheSizes = Devices::SystemInfo::getCPUCacheSizes( cpu_id );
+   const CacheSizes cacheSizes = SystemInfo::getCPUCacheSizes( cpu_id );
    String cacheInfo = convertToString( cacheSizes.L1data ) + ", "
                        + convertToString( cacheSizes.L1instruction ) + ", "
                        + convertToString( cacheSizes.L2 ) + ", "
@@ -344,11 +344,11 @@ Benchmark::MetadataMap getHardwareMetadata()
                              convertToString( Cuda::DeviceInfo::getArchitectureMinor( activeGPU ) );
 #endif
    Benchmark::MetadataMap metadata {
-       { "host name", Devices::SystemInfo::getHostname() },
-       { "architecture", Devices::SystemInfo::getArchitecture() },
-       { "system", Devices::SystemInfo::getSystemName() },
-       { "system release", Devices::SystemInfo::getSystemRelease() },
-       { "start time", Devices::SystemInfo::getCurrentTime() },
+       { "host name", SystemInfo::getHostname() },
+       { "architecture", SystemInfo::getArchitecture() },
+       { "system", SystemInfo::getSystemName() },
+       { "system release", SystemInfo::getSystemRelease() },
+       { "start time", SystemInfo::getCurrentTime() },
 #ifdef HAVE_MPI
        { "number of MPI processes", convertToString( (Communicators::MpiCommunicator::IsInitialized())
                                        ? Communicators::MpiCommunicator::GetSize( Communicators::MpiCommunicator::AllGroup )
@@ -356,10 +356,10 @@ Benchmark::MetadataMap getHardwareMetadata()
 #endif
        { "OpenMP enabled", convertToString( Devices::Host::isOMPEnabled() ) },
        { "OpenMP threads", convertToString( Devices::Host::getMaxThreadsCount() ) },
-       { "CPU model name", Devices::SystemInfo::getCPUModelName( cpu_id ) },
-       { "CPU cores", convertToString( Devices::SystemInfo::getNumberOfCores( cpu_id ) ) },
-       { "CPU threads per core", convertToString( Devices::SystemInfo::getNumberOfThreads( cpu_id ) / Devices::SystemInfo::getNumberOfCores( cpu_id ) ) },
-       { "CPU max frequency (MHz)", convertToString( Devices::SystemInfo::getCPUMaxFrequency( cpu_id ) / 1e3 ) },
+       { "CPU model name", SystemInfo::getCPUModelName( cpu_id ) },
+       { "CPU cores", convertToString( SystemInfo::getNumberOfCores( cpu_id ) ) },
+       { "CPU threads per core", convertToString( SystemInfo::getNumberOfThreads( cpu_id ) / SystemInfo::getNumberOfCores( cpu_id ) ) },
+       { "CPU max frequency (MHz)", convertToString( SystemInfo::getCPUMaxFrequency( cpu_id ) / 1e3 ) },
        { "CPU cache sizes (L1d, L1i, L2, L3) (kiB)", cacheInfo },
 #ifdef HAVE_CUDA
        { "GPU name", Cuda::DeviceInfo::getDeviceName( activeGPU ) },

src/TNL/Logger_impl.h

@@ -15,7 +15,7 @@
 
 #include <TNL/Logger.h>
 #include <TNL/Cuda/DeviceInfo.h>
-#include <TNL/Devices/SystemInfo.h>
+#include <TNL/SystemInfo.h>
 
 namespace TNL {
 
@@ -61,24 +61,24 @@ Logger::writeSystemInformation( const Config::ParameterContainer& parameters )
    const char* compiler_name = "(unknown)";
 #endif
 
-   writeParameter< String >( "Host name:", Devices::SystemInfo::getHostname() );
-   writeParameter< String >( "System:", Devices::SystemInfo::getSystemName() );
-   writeParameter< String >( "Release:", Devices::SystemInfo::getSystemRelease() );
-   writeParameter< String >( "Architecture:", Devices::SystemInfo::getArchitecture() );
+   writeParameter< String >( "Host name:", SystemInfo::getHostname() );
+   writeParameter< String >( "System:", SystemInfo::getSystemName() );
+   writeParameter< String >( "Release:", SystemInfo::getSystemRelease() );
+   writeParameter< String >( "Architecture:", SystemInfo::getArchitecture() );
    writeParameter< String >( "TNL compiler:", compiler_name );
    // FIXME: generalize for multi-socket systems, here we consider only the first found CPU
    const int cpu_id = 0;
-   const int threads = Devices::SystemInfo::getNumberOfThreads( cpu_id );
-   const int cores = Devices::SystemInfo::getNumberOfCores( cpu_id );
+   const int threads = SystemInfo::getNumberOfThreads( cpu_id );
+   const int cores = SystemInfo::getNumberOfCores( cpu_id );
    int threadsPerCore = 0;
    if( cores > 0 )
       threadsPerCore = threads / cores;
    writeParameter< String >( "CPU info", "" );
-   writeParameter< String >( "Model name:", Devices::SystemInfo::getCPUModelName( cpu_id ), 1 );
+   writeParameter< String >( "Model name:", SystemInfo::getCPUModelName( cpu_id ), 1 );
    writeParameter< int >( "Cores:", cores, 1 );
    writeParameter< int >( "Threads per core:", threadsPerCore, 1 );
-   writeParameter< double >( "Max clock rate (in MHz):", Devices::SystemInfo::getCPUMaxFrequency( cpu_id ) / 1000, 1 );
-   const Devices::CacheSizes cacheSizes = Devices::SystemInfo::getCPUCacheSizes( cpu_id );
+   writeParameter< double >( "Max clock rate (in MHz):", SystemInfo::getCPUMaxFrequency( cpu_id ) / 1000, 1 );
+   const CacheSizes cacheSizes = SystemInfo::getCPUCacheSizes( cpu_id );
    const String cacheInfo = convertToString( cacheSizes.L1data ) + ", "
                           + convertToString( cacheSizes.L1instruction ) + ", "
                           + convertToString( cacheSizes.L2 ) + ", "
@@ -116,7 +116,7 @@ Logger::writeSystemInformation( const Config::ParameterContainer& parameters )
 inline void
 Logger::writeCurrentTime( const char* label )
 {
-   writeParameter< String >( label, Devices::SystemInfo::getCurrentTime() );
+   writeParameter< String >( label, SystemInfo::getCurrentTime() );
 }
 
 template< typename T >

src/TNL/Devices/SystemInfo.h → src/TNL/SystemInfo.h

@@ -15,7 +15,6 @@
 #include <TNL/String.h>
 
 namespace TNL {
-namespace Devices {
 
 struct CacheSizes {
    int L1instruction = 0;
@@ -68,7 +67,6 @@ protected:
    }
 };
 
-} // namespace Devices
 } // namespace TNL
 
-#include <TNL/Devices/SystemInfo_impl.h>
+#include <TNL/SystemInfo.hpp>

src/TNL/Devices/SystemInfo_impl.h → src/TNL/SystemInfo.hpp

@@ -18,10 +18,9 @@
 #include <sys/utsname.h>
 #include <sys/stat.h>
 
-#include <TNL/Devices/SystemInfo.h>
+#include <TNL/SystemInfo.h>
 
 namespace TNL {
-namespace Devices {
 
 inline String
 SystemInfo::getHostname( void )
@@ -215,5 +214,4 @@ SystemInfo::parseCPUInfo( void )
    return info;
 }
 
-} // namespace Devices
 } // namespace TNL