The filed in Taichi can only be accessed through the index of I32?

[sanxiadaba]

My system is Win10 and Taichi version is 1.1.3

The filed in Taichi can only be accessed through the index of I32. If default_ip=ti. I64 is set at the beginning, it will fail to access the index below
The following code will report an error

import taichi as ti

ti.init(arch=ti.cpu, default_ip=ti.i64)
n = 1024
val = ti.field(dtype=ti.i64, shape=n)
val.fill(1)


@ti.kernel
def prefix_sum():
    ti.loop_config(serialize=True)
    for i in range(1, 1024):
        val[i] += val[i - 1]


prefix_sum()
print(val)

[Taichi] version 1.1.3, llvm 10.0.0, commit 1262a70, win, python 3.10.7
[Taichi] Starting on arch=x64
C:\Users\001\AppData\Local\Programs\Python\Python310\lib\site-packages\taichi\lang\ast\ast_transformer.py:38: Warning: Casting range_for
boundary values from i64 to i32, which may cause numerical issues
warnings.warn(
[I 09/25/22 21:07:25.771 20228] [D:/a/taichi/taichi/taichi/codegen/llvm/llvm_codegen_utils.cpp:check_func_call_signature@134] Function :
Dense_lookup_element
[I 09/25/22 21:07:25.772 20228] [D:/a/taichi/taichi/taichi/codegen/llvm/llvm_codegen_utils.cpp:check_func_call_signature@135] Type :
i8* (i8*, i8*, i32)
[E 09/25/22 21:07:25.773 20228] [D:/a/taichi/taichi/taichi/codegen/llvm/llvm_codegen_utils.cpp:check_func_call_signature@144] parameter 2 mismatch: required=i32, provided=i64

Traceback (most recent call last):
File "c:\Code\github\my_python_function\Test\test22.py", line 16, in
prefix_sum()
File "C:\Users\001\AppData\Local\Programs\Python\Python310\lib\site-packages\taichi\lang\kernel_impl.py", line 915, in wrapped
return primal(*args, **kwargs)
File "C:\Users\001\AppData\Local\Programs\Python\Python310\lib\site-packages\taichi\lang\kernel_impl.py", line 842, in call
return self.runtime.compiled_functionskey
File "C:\Users\001\AppData\Local\Programs\Python\Python310\lib\site-packages\taichi\lang\kernel_impl.py", line 769, in func__
raise e from None
File "C:\Users\001\AppData\Local\Programs\Python\Python310\lib\site-packages\taichi\lang\kernel_impl.py", line 766, in func__
t_kernel(launch_ctx)
RuntimeError: [D:/a/taichi/taichi/taichi/codegen/llvm/llvm_codegen_utils.cpp:check_func_call_signature@144] parameter 2 mismatch: required=i32, provided=i64

No error will be reported after the transformation

import taichi as ti

ti.init(arch=ti.cpu, default_ip=ti.i64)
n = 1024
val = ti.field(dtype=ti.i64, shape=n)
val.fill(1)


@ti.kernel
def prefix_sum():
    ti.loop_config(serialize=True)
    for i in range(1, 1024):
        val[ti.i32(i)] += val[ti.i32(i - 1)]


prefix_sum()
print(val)

[sanxiadaba]

ok,thanks your reply ***@***.*** From: Zhanlue Yang Date: 2022-10-11 10:54 To: taichi-dev/taichi CC: jun; Author Subject: Re: [taichi-dev/taichi] The filed in Taichi can only be accessed through the index of I32? (Issue #6159) Closed #6159 as completed via #6276. ― Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>