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Just did a search on google on possible benefits of 64
bits beyond memory addressing
"
"The performance gains from having 16 GPRs
available will vary depending on the complexity of your code.
Compute-intensive applications with deeply nested loops, as in most Fortran
codes, will experience higher levels of register pressure than simpler
algorithms that follow a mostly linear execution path.
"
but I dont think 64 bits will be twice as fast, but my
optimization codes are very computation intensive.
Paul
Tomasz:
If going from single to dual core (both 32 bit
code) will
give about a 2x speed increase, what is your estimate of
the
speed increase that one might expect when going from 32
bit 64 bit code?
I know that 64 bit code will theoretically give a huge
increase in
addressable RAM, but that will not affect most
of us since the current 32 bit
Windows code will address 4
GB which is considerably larger than my
database.
Thus any advantage of 64 bit really comes down
to
computational advantages. How much of a speed advantage
will 64 bit
code give Amibroker? My guess is that going
from single to dual core (both 32
bit) will give more gain
than going from 32 to 64 bit.
Is this guess
right or wrong.
--- Tomasz Janeczko <amibroker@xxxxxx>
wrote:
> ... Having this in mind, I am starting to think about
>
implementing multi-core support based on 32 bit code
> first to avoid
problems with external data sources. This
> will still bring almost 2x
speed increase on
> dual-core processors such as Athlon 64x2 and most
recent
> dual-core
Pentiums.
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