08-24-2016
I have neither a V440 nor a fortran compiler.
But you can get a rough figure by comparing the clock speeds. Note that the Niagara (e.g. the T5 series) uses half the clock speed on the CPU cores. For example a 3.0 GHz Niagara should be like a 1.5 Ghz V440 in computation.
However the Niagara could run more computations (e.g. benchmarks) in parallel with still high speed.
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LEARN ABOUT LINUX
adjtime
ADJTIME(2) Linux Programmer's Manual ADJTIME(2)
NAME
adjtime - smoothly tune kernel clock
SYNOPSIS
#include <sys/time.h>
int adjtime(const struct timeval *delta, struct timeval *olddelta);
DESCRIPTION
This function speeds up or slows down the system clock in order to make a gradual adjustment. This ensures that the calendar time reported
by the system clock is always monotonically increasing, which might not happen if you simply set the clock.
The delta argument specifies a relative adjustment to be made to the clock time. If negative, the system clock is slowed down fora while
until it has lost this much elapsed time. If positive, the system clock is speeded up for a while.
If the olddelta argument is not a null pointer, the adjtime function returns information about any previous time adjustment that has not
yet completed.
This function is typically used to synchronize the clocks of computers in a local network. You must be a privileged user to use it.
RETURN VALUE
The adjtime function returns 0 on success and -1 on failure and sets the external variable errno accordingly.
ERRORS
EPERM The calling process does not have enough privileges to access the clock.
NOTE
With a Linux kernel, you can use the adjtimex(2) function to permanently change the system clock speed.
CONFORMING TO
This function is derived from 4.3 BSD and SVr4.
SEE ALSO
adjtimex(2), settimeofday(2)
Linux 2.0 2002-02-16 ADJTIME(2)