src/gromacs/hardware/tests/cpuinfo.cpp

   1 /*
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   5  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
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  35 /*! \internal \file
  36  * \brief
  37  * Tests for gmx::CpuInfo
  38  *
  39  * \author Erik Lindahl <erik.lindahl@gmail.com>
  40  * \ingroup module_hardware
  41  */
  42 #include "gmxpre.h"
  43
  44 #include "gromacs/hardware/cpuinfo.h"
  45
  46 #include "config.h"
  47
  48 #include <gtest/gtest.h>
  49
  50 namespace
  51 {
  52
  53 TEST(CpuInfoTest, SupportLevel)
  54 {
  55     // There is no way we can compare to any reference data since that
  56     // depends on the architecture, but we can at least make sure that it
  57     // works to execute the tests
  58
  59     gmx::CpuInfo c(gmx::CpuInfo::detect());
  60
  61     std::string  commonMsg =
  62         "\nGROMACS might still work, but it will likely hurt your performance."
  63         "\nPlease mail gmx-developers@gromacs.org so we can try to fix it.";
  64
  65     // It is not the end of the world if any of these tests fail (Gromacs will
  66     // work fine without cpuinfo), but we might as well flag it so we add it to
  67     // our detection code
  68     EXPECT_GT(c.supportLevel(), gmx::CpuInfo::SupportLevel::None)
  69     << "No CPU information at all could be detected. " << commonMsg << std::endl;
  70
  71 #ifdef GMX_TARGET_X86
  72     EXPECT_GE(c.supportLevel(), gmx::CpuInfo::SupportLevel::Features)
  73     << "No CPU features could be detected. " << commonMsg << std::endl;
  74 #endif
  75
  76     if (c.supportLevel() >= gmx::CpuInfo::SupportLevel::LogicalProcessorInfo)
  77     {
  78         // Make sure assigned numbers are reasonable if we have them
  79         for (auto &l : c.logicalProcessors())
  80         {
  81             EXPECT_GE(l.socketRankInMachine, 0) << "Impossible socket index for logical processor. " << commonMsg << std::endl;
  82             EXPECT_GE(l.coreRankInSocket,    0) << "Impossible core index for logical processor. " << commonMsg << std::endl;
  83             EXPECT_GE(l.hwThreadRankInCore,  0) << "Impossible hwthread index for logical processor. " << commonMsg << std::endl;
  84         }
  85     }
  86 }
  87
  88 } // namespace