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Milners fickle() in pi-WAM [For fun and profit] (Re: pi in pi-WAM refers to pi-calculus)

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Hi,

Milners fickle() is here:

Functions as processes
https://inria.hal.science/inria-00075405

After Theorem 7.7:

So in P we construct a fickle ‘function’ which
behaves differently on successive calls.

Here is a pi-WAM run in Dogelog Player, using the emulator:

Dogelog Spieler 2.2.4, Oracle Corporation, Java 26.0.1
(c) 1985-2026, XLOG Technologies AG, Schweiz
?- ensure_loaded(library(edge/brainfog)).
true.
?- emulate((between(1,2,Y),in(X),out(Y))).
: 0
1
: 0
2
fail.

The emulator is portable, can be run every Prolog
system. But it is only 1 process. So its better
to use the n process backends for CPU or GPU.

Which are less portable, not anymore pure Prolog,
a great deal of thread start and join infrastructure
as well, and a native Hack VM.

The comms across process is not yet implemented.
But the in/1 and out/1 instructions are already
there. But they currently go to stdin/stdout.

Bye

Mild Shock schrieb:
> Hi,
> 
> The pi in pi-WAM refers to pi-calculus.
> pi-calculus has not atomic(i32).
> 
> The π-calculus is a universal model of computation.
> This was first observed by Milner in his paper
> "Functions as Processes",[10] in which he presents
> two encodings of the lambda-calculus in the π-calculus.
> https://en.wikipedia.org/wiki/%CE%A0-calculus
> 
> LoL
> 
> Bye
> 
> Chris M. Thomasson schrieb:
>> On 7/17/2026 2:16 AM, Mild Shock wrote:
>>> Hi,
>>>
>>> Maybe I should write a blog post, titled
>>> Introduction to AI Accelerator Prolog:
>>>
>>> - specialized jobs π-WAM (currently integerish stuff)
>>> - π-WAM uses no atomics, only comms
>>> - π-WAM uses warp, 30-40% more speed
>>> - π-WAM runs on GPU and CPU
>>> - π-WAM runs from within JavaScript, Python and Java
>>
>> [...]
>>
>> No atomic fetch-and-add?
> 

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