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[Feature Request] Infer NDBuffer Rank From DimList #4

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lsh opened this issue May 3, 2023 · 3 comments
Open

[Feature Request] Infer NDBuffer Rank From DimList #4

lsh opened this issue May 3, 2023 · 3 comments
Labels
enhancement New feature or request mojo Issues that are related to mojo mojo-lang Tag for all issues related to language. mojo-repo Tag all issues with this label

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@lsh
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lsh commented May 3, 2023

In most APIs, the rank of a multidimensional array would be assumed to be equivalent to the shape.

I noticed that the invocation for NDBuffer is NDBuffer[rank, shape, dtype](). It would be ergonomic to have a constructor that assumes rank from shape, so it could just be NDBuffer[DimList(2,3), DType.ui32](),
or even better NDBuffer[(2,3), DType.ui32]()

@Mogball
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Mogball commented May 4, 2023

Thanks for the issue!

This is a current limitation of how we handle dependent parameters, and there are other types and functions that suffer from this. The key issue is that the shape parameter depends on rank, and parameters are resolved left-to-right, so rank has to be defined first. That said, I think this is something we should support, since it is natural and intuitive to infer rank from shape.

@Mogball Mogball added the enhancement New feature or request label May 4, 2023
@lattner
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lattner commented May 7, 2023

@abduld this seems like we can just directly improve NDBuffer. Could we change it from:

struct NDBuffer[
    rank: Int,
    shape: DimList,
    type: DType,
]:

to:

struct NDBuffer[
    shape: DimList,
    type: DType,
]:
  alias rank = len(shape) 
  ...

DimList doesn't currently have a __len__ method, but its underlying storage type does.

@abduld
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abduld commented May 7, 2023

Yes, we can certainly improve (and will improve) the API for NDBuffer. Thanks @lsh for the suggestion

@abduld abduld self-assigned this May 7, 2023
@ematejska ematejska added the mojo Issues that are related to mojo label Sep 7, 2023
@Mogball Mogball added the mojo-lang Tag for all issues related to language. label Feb 22, 2024
JoeLoser pushed a commit to JoeLoser/mojo that referenced this issue Mar 28, 2024
…2290)

This continues to remove the pop operations from the dtype checks
without getting recursive elaborator errors

E.g

```
no work left, no deferred search, and no recursion?
UNREACHABLE executed at /Users/abduld/code/modular/KGEN/lib/Elaborator/Elaborator.cpp:2703!
PLEASE submit a bug report to [Internal Link] and include the crash backtrace.
 #0 0x0000000102c4ca08 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/abduld/code/modular/.derived/build-release/bin/mojo-prime-package-cache+0x1000c4a08)
 #1 0x0000000102c4ab68 llvm::sys::RunSignalHandlers() (/Users/abduld/code/modular/.derived/build-release/bin/mojo-prime-package-cache+0x1000c2b68)
 modularml#2 0x0000000102c4d0a8 SignalHandler(int) (/Users/abduld/code/modular/.derived/build-release/bin/mojo-prime-package-cache+0x1000c50a8)
 modularml#3 0x00000001880e02a4 (/usr/lib/system/libsystem_platform.dylib+0x1803fc2a4)
 modularml#4 0x00000001880b1cec (/usr/lib/system/libsystem_pthread.dylib+0x1803cdcec)
 modularml#5 0x0000000187feb2c8 (/usr/lib/system/libsystem_c.dylib+0x1803072c8)
 modularml#6 0x0000000102be03a0 llvm::install_out_of_memory_new_handler() (/Users/abduld/code/modular/.derived/build-release/bin/mojo-prime-package-cache+0x1000583a0)
```

modular-orig-commit: ebb7c424801291198503fde0ebdd6fd28da8f2e9
@ematejska ematejska added the mojo-repo Tag all issues with this label label Apr 29, 2024
modularbot pushed a commit that referenced this issue May 29, 2024
This PR introduces nondeterminism into the testsuite. `test_dict.mojo`
nondeterministically fails with

```
[M] ➜  modular git:(1853f9d3e9) mojo /Users/jeff/Documents/modular/******/test/stdlib/collections/test_dict.mojo
Test test_basic ...PASS
Test test_multiple_resizes ...PASS
Test test_big_dict ...PASS
Test test_compact ...PASS
Test test_compact_with_elements ...PASS
Test test_pop_default ...PASS
Test test_key_error ...PASS
Test test_iter ...PASS
Test test_iter_keys ...PASS
Test test_iter_values ...PASS
Test test_iter_values_mut ...PASS
Test test_iter_items ...PASS
Test test_dict_copy ...PASS
Test test_dict_copy_add_new_item ...PASS
Test test_dict_copy_delete_original ...PASS
Test test_dict_copy_calls_copy_constructor ...PASS
Test test_dict_update_nominal ...PASS
Test test_dict_update_empty_origin ...PASS
Test test_dict_update_empty_new ...PASS
Test test_mojo_issue_1729 ...PASS
Test test dict or ...PASS
Test test dict popteim ...get: wrong variant type
Please submit a bug report to https://github.com/modularml/mojo/issues and include the crash backtrace along with all the relevant source codes.
Stack dump:
0.      Program arguments: mojo /Users/jeff/Documents/modular/******/test/stdlib/collections/test_dict.mojo
 #0 0x00000001043a10b0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c90b0)
 #1 0x000000010439f210 llvm::sys::RunSignalHandlers() (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c7210)
 #2 0x00000001043a1750 SignalHandler(int) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c9750)
 #3 0x00000001ab1b2a24 (/usr/lib/system/libsystem_platform.dylib+0x18042ea24)
 #4 0xffff8002a81b8510
 #5 0x00000001047c1608 M::KGEN::ExecutionEngine::runProgram(llvm::StringRef, llvm::StringRef, llvm::function_ref<M::ErrorOrSuccess (void*)>) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1004e9608)
 #6 0x00000001042f8270 executeMain(mlir::ModuleOp, mlir::SymbolTable const&, M::KGEN::ExecutionEngine*, M::LLCL::Runtime&, llvm::ArrayRef<char const*>) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x100020270)
 #7 0x00000001042f7cb8 run(M::State const&) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x10001fcb8)
 #8 0x00000001042df774 main (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x100007774)
 #9 0x00000001aae2bf28
[1]    44318 trace trap  mojo
```

MODULAR_ORIG_COMMIT_REV_ID: ee1c665669902106df680fe6c6d2599897665ff5
modularbot pushed a commit that referenced this issue Jun 7, 2024
This PR introduces nondeterminism into the testsuite. `test_dict.mojo`
nondeterministically fails with

```
[M] ➜  modular git:(1853f9d3e9) mojo /Users/jeff/Documents/modular/******/test/stdlib/collections/test_dict.mojo
Test test_basic ...PASS
Test test_multiple_resizes ...PASS
Test test_big_dict ...PASS
Test test_compact ...PASS
Test test_compact_with_elements ...PASS
Test test_pop_default ...PASS
Test test_key_error ...PASS
Test test_iter ...PASS
Test test_iter_keys ...PASS
Test test_iter_values ...PASS
Test test_iter_values_mut ...PASS
Test test_iter_items ...PASS
Test test_dict_copy ...PASS
Test test_dict_copy_add_new_item ...PASS
Test test_dict_copy_delete_original ...PASS
Test test_dict_copy_calls_copy_constructor ...PASS
Test test_dict_update_nominal ...PASS
Test test_dict_update_empty_origin ...PASS
Test test_dict_update_empty_new ...PASS
Test test_mojo_issue_1729 ...PASS
Test test dict or ...PASS
Test test dict popteim ...get: wrong variant type
Please submit a bug report to https://github.com/modularml/mojo/issues and include the crash backtrace along with all the relevant source codes.
Stack dump:
0.      Program arguments: mojo /Users/jeff/Documents/modular/******/test/stdlib/collections/test_dict.mojo
 #0 0x00000001043a10b0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c90b0)
 #1 0x000000010439f210 llvm::sys::RunSignalHandlers() (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c7210)
 #2 0x00000001043a1750 SignalHandler(int) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1000c9750)
 #3 0x00000001ab1b2a24 (/usr/lib/system/libsystem_platform.dylib+0x18042ea24)
 #4 0xffff8002a81b8510
 #5 0x00000001047c1608 M::KGEN::ExecutionEngine::runProgram(llvm::StringRef, llvm::StringRef, llvm::function_ref<M::ErrorOrSuccess (void*)>) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x1004e9608)
 #6 0x00000001042f8270 executeMain(mlir::ModuleOp, mlir::SymbolTable const&, M::KGEN::ExecutionEngine*, M::LLCL::Runtime&, llvm::ArrayRef<char const*>) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x100020270)
 #7 0x00000001042f7cb8 run(M::State const&) (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x10001fcb8)
 #8 0x00000001042df774 main (/Users/jeff/Documents/modular/.derived/build-relwithdebinfo/bin/mojo+0x100007774)
 #9 0x00000001aae2bf28
[1]    44318 trace trap  mojo
```

MODULAR_ORIG_COMMIT_REV_ID: ee1c665669902106df680fe6c6d2599897665ff5
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