Remove support for Intel classic compiler

[alexxy/gromacs.git] / src / gromacs / hardware / prepare_detection.cpp

diff --git a/src/gromacs/hardware/prepare_detection.cpp b/src/gromacs/hardware/prepare_detection.cpp
index 853192f52a70c810c54d8f5ee6ab502fedc727b1..296b4844fc0229542c0da7f2909f9c7860c34866 100644 (file)
--- a/src/gromacs/hardware/prepare_detection.cpp
+++ b/src/gromacs/hardware/prepare_detection.cpp
@@ -2,7 +2,7 @@
  * This file is part of the GROMACS molecular simulation package.
  *
  * Copyright (c) 2012,2013,2014,2015,2016 by the GROMACS development team.
- * Copyright (c) 2017,2018,2019,2020, by the GROMACS development team, led by
+ * Copyright (c) 2017,2018,2019,2020,2021, by the GROMACS development team, led by
  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
  * and including many others, as listed in the AUTHORS file in the
  * top-level source directory and at http://www.gromacs.org.
@@ -73,18 +73,8 @@ namespace gmx
  *  (using sysconf), and the spins doing dummy compute operations for up to
  *  2 seconds, or until all cores have come online. This can be used prior to
  *  hardware detection for platforms that take unused processors offline.
- *
- *  This routine will not throw exceptions. In principle it should be
- *  declared noexcept, but at least icc 19.1 and 21-beta08 with the
- *  libstdc++-7.5 has difficulty implementing a std::vector of
- *  std::thread started with this function when declared noexcept. It
- *  is a known compiler bug that should be fixed after 19.1.
- *  Fortunately, this function is not performance sensitive,
- *  and only runs on platforms other than x86 and POWER (ie ARM),
- *  so the possible overhead introduced by omitting noexcept is not
- *  important.
  */
-static void spinUpCore()
+static void spinUpCore() noexcept
 {
 #if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_CONF) && defined(_SC_NPROCESSORS_ONLN)
     float dummy           = 0.1;