45 строки
1.0 KiB
C
45 строки
1.0 KiB
C
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OMPI_SYS_ARCH_TIMER_H
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#define OMPI_SYS_ARCH_TIMER_H 1
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typedef uint64_t opal_timer_t;
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#if OMPI_GCC_INLINE_ASSEMBLY
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static inline opal_timer_t
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opal_sys_timer_get_cycles(void)
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{
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opal_timer_t ret;
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__asm__ __volatile__ ("mov %0=ar.itc" : "=r"(ret));
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return ret;
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}
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#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 1
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#else
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#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 0
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#endif /* OMPI_GCC_INLINE_ASSEMBLY */
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#endif /* ! OMPI_SYS_ARCH_TIMER_H */
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