i keep forgetting of abominations like running a 32-bit Pd on a 64-bit OS.
Actually, the average Windows user will have more 32-bit apps than 64-bit apps running on their 64-bit OS ;-). And most Pd users on 64-bit Windows will have a 32-bit Pd because Miller doesn't offer 64-bit binaries yet and building from source is still impossible (at least with MinGW).
decent OSs should be able to manage more than a total 4GB of RAM even when the entire OS is 32bit (a single application will not be able to address more than 2^32 bytes though; but it should get you closer to really having 4GB, rather than 2GB)
on 32-bit Windows you usually get 2 GB per process - or 3 GB with some tricks*. on 64-bit Windows it's 2 GB for 32-bit processes unless you compile with IMAGE_FILE_LARGE_ADDRESS_AWARE set, then you get 4 GB.
here are the boring details: https://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx?ranMID=24542&a...)
I actually I didn't know about IMAGE_FILE_LARGE_ADDRESS_AWARE until now. Miller could actually use it in his 32-bit Windows builds, which currently only allow 2 GB**. It won't do any harm on 32-bit systems and doubles the available memory on 64-bit systems.
fun fact: on linux, you can use 64bit Pd for >10 years with virtually all external libraries working.
:-o. time to finally get my dual boot. I weren't so lazy...
Christof
- IMAGE_FILE_LARGE_ADDRESS_AWARE set + 4GT enabled (risky)
** I tested this with latest vanilla 32-bit binaries on Windows 7 64-bit (with 16 GB of RAM installed). I get a warning when I try to exceed 2 GB.
Gesendet: Montag, 27. Februar 2017 um 22:58 Uhr Von: "IOhannes m zmölnig" zmoelnig@iem.at An: pd-list@lists.iem.at Betreff: Re: [PD] soundfiler alternative?
On 02/27/2017 10:45 PM, Christof Ressi wrote:
well, [table] stores the samples as floating point (taking 4 bytes per sample; and 8 byte on 64bit systems),
It depends on your Pd (32-bit or 64-bit), not on the system.
well yes, true. i keep forgetting of abominations like running a 32-bit Pd on a 64-bit OS.
however, there is a simple solution at hand: get youself plenty of RAM and pre-load everything into tables. 32GB cost about 250,-€ and will allow you to load approx. 24h of raw audio, which is probably enough.
Unfortunately, this is only true for 64-bit processes. A single 32-bit process can't handle more than 2^32 bytes (~4 GB). In reality, it's even less, usually 2 GB, which is a bit more than 1,5 hours of stereo audio @44100 Hz. Pd will give you a warning when you try to exceed this limit ("pd: resizebytes() failed - out of memory").
how much RAM does that machine have? decent OSs should be able to manage more than a total 4GB of RAM even when the entire OS is 32bit (a single application will not be able to address more than 2^32 bytes though; but it should get you closer to really having 4GB, rather than 2GB)
but yes, in order to make use of 32GB of memory you need a native 64bit application (running on a 64bit OS).
fun fact: on linux, you can use 64bit Pd for >10 years with virtually all external libraries working.
gmsr IOhannes
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