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timer.h
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Created
Tue, Sep 3, 21:16
Size
451 B
Mime Type
text/x-c
Expires
Thu, Sep 5, 21:16 (2 d)
Engine
blob
Format
Raw Data
Handle
20387428
Attached To
R1448 Lenstool-HPC
timer.h
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#pragma once
//
#include <sys/time.h>
extern
"C"
{
double
myseconds
()
{
struct
timeval
tp
;
struct
timezone
tzp
;
//
int
i
=
gettimeofday
(
&
tp
,
&
tzp
);
//
return
(
(
double
)
tp
.
tv_sec
+
(
double
)
tp
.
tv_usec
*
1.e-6
);
}
}
static
inline
unsigned
long
long
cycles
()
{
unsigned
long
long
u
;
__asm__
volatile
(
"rdtscp;shlq $32,%%rdx;orq %%rdx,%%rax;movq %%rax,%0"
:
"=q"
(
u
)
::
"%rax"
,
"%rdx"
,
"rcx"
);
return
u
;
}
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