2,019 questions
1
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why the order of return variables affect the jax jitted function's performance so much?
In jax, you can donate a function argument to save the execute memory and time, if this argument is not used any more.
If you know that one of the inputs is not needed after the computation, and if ...
- 194
-1
votes
1
answer
124
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Passing 4 arguments to a jit function with 4 parameters raises TypeError: jit() takes 1 positional argument but 5 positional arguments
I am currently working on GPU optimized simulations. For that, I have a function where the head looks like this:
import jax
from functools import partial
@partial(partial, jax.jit, static_argnums=(2,...
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Advice
1
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1
replies
50
views
Adding stack information to jit'd code for sanitization
Disclaimer: I'm expecting that the answer to this question will be that it can't be done, but I'm asking as a just in case.
I am working on a JIT'd language with the compiler and runtime implemented ...
- 131
2
votes
1
answer
121
views
Sequential compilation times of a jax-jitted recursive function
I have a recursively defined function my_func that is jitted using jax.jit from the jax library. It is defined below:
# Imports
import jax
import jax.numpy as jnp
from functools import partial
import ...
- 539
3
votes
1
answer
51
views
Unexpected recompilation of method - JVM
Let look at the log from XX:+PrintCompilation:
Time Tier Method
11:20:24 3 m
11:24:14 3 m made not entrant
11:24:15 2 ...
- 5,193
3
votes
2
answers
376
views
Making an absolute 64-bit jump in x64 assembler which can be copied as a JIT
I am trying to port some code from linux to windows. I need to assemble a jump to an absolute address, using nasm, such that the same bytes will jump to the same address, no matter where the code is ...
- 50.7k
4
votes
2
answers
224
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Why is the the generic implementation of Vector.Log so much slower than the non-generic implementations for me?
I've run some benchmarks on Math.Log, System.Numerics.Vector.Log, System.Runtime.Intrinsics.Vector128.Log, Vector256.Log and Vector512.Log and the results were pretty surprising to me. I was expecting ...
- 51
0
votes
0
answers
135
views
About JVM's tiered compilation sequence, does isolated method optimization occur before inlining?
The tiered steps provided by Oracle are:
It seems to me that...
I'd be a reasonable assumption to think that optimizations should occur with methods in isolation (detached from its call-site context),...
- 1,385
1
vote
0
answers
77
views
LAPACK Inconsistent across multiple different operating systems and devices
Description
I have a deterministic program that uses jax, and is heavy on linear algebra operations.
I ran this code on CPU, using three different CPUs. Two MacOs Systems (one on Sequoia (M1 Pro), ...
- 135
0
votes
1
answer
204
views
js v8 function inlining
I'm intresed how and in what cases V8 perform inlining.
I know that V8 can inline functions to eliminate call cost, but i dont konw the rules for it to happen.
I got how it works in obvious cases, ...
- 145
3
votes
0
answers
85
views
How does Python debugger honor the editing of script during execution?
I understand that Python interpreter will compiles source code during parsing just like what compiler for C does, which makes me curious why Python debugger can honor the editing during execution?
Say,...
- 2,301
0
votes
1
answer
50
views
What's the right way to determine which kind of cl_program I have?
The OpenCL API has one object which is sort of a "kitchen sink" for a lot of stuff: The program (with handle type cl_program). It can hold:
A textual program source ( ...
- 138k
1
vote
1
answer
80
views
numba.njit signature for a list of jitclass objects
I am trying to pass a list of jitclass objects to a jitted function, but I've been unable to find a suitable type signature for njit. I don't understand well how Numba thinks, so I would really ...
- 21
1
vote
1
answer
121
views
js v8 computed property names and inline cache
as far as my understanding go, in v8 if property access occurs on object with persistent shape jit optimize it to prety much struct acces that is just offsetting a pointer but is the same rules ...
- 145
1
vote
0
answers
40
views
Cross platform exceptions in llvm jit
I'm trying to implement exceptions in a language with llvm jit, Well not exceptions really but a panic system, that unwinds the stack to specific point and destroys local variables, I chose to use ...
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