Files
zeekay b832ba2c39 Initial Torus commit
Forked from upstream concrete (BSD-3-Clause-Clear, © 2024 ZAMA) at HEAD
ecb729bb. Modifications copyright © 2026 Lux Industries Inc.

Rebranding scope:
  - Python module concrete → torus (across frontends/torus-python)
  - Rust module concrete-* → torus-* (across frontends/torus-rust)
  - MLIR dialect concretelang → toruslang (across compilers/torus-compiler)
  - Compiler optimizer concrete-optimizer → torus-optimizer
  - Backend concrete-cpu / concrete-cuda → torus-cpu / torus-cuda
  - Wire protocol concrete-protocol → torus-protocol
  - Parameter-curves concrete-security-curves-* → torus-security-curves-*
  - Public symbols concretelib → toruslib, ConcreteLang → TorusLang
  - URLs github.com/zama-ai/concrete → github.com/luxfhe/torus
  - URLs docs.zama.ai/concrete → docs.luxfhe.com/torus

Legal compliance:
  - LICENSE.txt retains original Copyright © 2024 ZAMA verbatim (§1-§2)
  - LICENSE.txt adds modifications copyright © 2026 Lux Industries Inc.
  - §3 endorsement clause: Torus is marketed exclusively as a Lux product;
    no Zama name used in README, docs, or marketing
  - NOTICE file provides factual attribution per legal best practice
    (not endorsement; required by upstream BSD-3-Clause-Clear)

README + NOTICE rewritten from scratch with Lux brand:
  - Quick-start in Python (torus.fhe)
  - Architecture diagram showing the gen-1 vtbl integration path
    (luxcpp/gpu → lux-private/gpu-kernels for CUDA/Metal/WebGPU)
  - Scheme coverage table: TFHE (luxfi/fhe), CKKS/BGV/BFV (luxfi/lattice)
  - Lux FHE family table: Torus / TorusVM / TorusEVM / TorusML / TorusNet

Known limitations (phase-2A scope):
  - PyPI package torus-fhe not yet published; the torus Python module
    is renamed structurally but pip-installable distribution is a
    follow-up (Phase 2A.1)
  - MLIR dialect rename is text-level; the compiler-internal LLVM
    rebuild (concrete-compiler-internal-llvm-project submodule) is
    structural and works; tablegen files renamed concrete→torus but the
    generated .inc files in the source tree will regenerate at build
    time
  - backends/torus-cuda/implementation/ is an upstream submodule
    pointer to the tfhe-rs source (not fetched in the staging clone);
    the CUDA backend body is delivered out-of-tree
  - ~100 test-fixture variable names like concrete_encoded_sample
    retain "concrete" as a math term (vs symbolic); these are inside
    tests/, not the public API; cleanup is a follow-up commit
  - 295 Python `from concrete import ...` residuals in luxfhe/ml-sdk
    consumer remain; that repo's import update is Phase 2B

This commit is the seed for the luxfhe/torus repo. Push as the first
commit to a fresh GitHub repo; do not re-import upstream Zama git
history.
2026-05-29 14:16:47 -07:00

6.2 KiB

'RT' Dialect

Runtime dialect A dialect for representation the abstraction needed for the runtime.

Operation definition

RT.await_future (::mlir::toruslang::RT::AwaitFutureOp)

Wait for a future and access its data.

The results of a dataflow task are always futures which could be further used as inputs to subsequent tasks. When the result of a task is needed in the outer execution context, the result future needs to be synchronized and its data accessed using RT.await_future.

Operands:

Operand Description
input Future with a parameterized element type

Results:

Result Description
output any type

RT.build_return_ptr_placeholder (::mlir::toruslang::RT::BuildReturnPtrPlaceholderOp)

Results:

Result Description
output Pointer to a parameterized element type

RT.clone_future (::mlir::toruslang::RT::CloneFutureOp)

Interfaces: AllocationOpInterface, MemoryEffectOpInterface

Operands:

Operand Description
input Future with a parameterized element type

Results:

Result Description
output Future with a parameterized element type

RT.create_async_task (::mlir::toruslang::RT::CreateAsyncTaskOp)

Create a dataflow task.

Attributes:

Attribute MLIR Type Description
workfn ::mlir::SymbolRefAttr symbol reference attribute

Operands:

Operand Description
list any type

RT.dataflow_task (::mlir::toruslang::RT::DataflowTaskOp)

Dataflow task operation

RT.dataflow_task allows to specify a task that will be concurrently executed when their operands are ready. Operands are either the results of computation in other RT.dataflow_task (dataflow dependences) or obtained from the execution context (immediate operands). Operands are synchronized using futures and, in the case of immediate operands, copied when the task is created. Caution is required when the operand is a pointer as no deep copy will occur.

Example:

func @test(%0 : i64): (i64, i64) {
    // Execute right now as %0 is ready.
    %1, %2 = "RT.dataflow_task"(%0) ({
        %a = addi %0, %0 : i64
        %b = muli %0, %0 : i64
        "RT.dataflow_yield"(%a, %b) : (i64, i64) -> i64
    }) : (i64, i64) -> (i64, i64)
    // Concurrently execute both tasks below when the task above is completed.
    %3 = "RT.dataflow_task"(%1) ({
        %c = constant 1 : %i64
        %a = addi %1, %c : i64
        "RT.dataflow_yield"(%a) : (i64, i64) -> i64
    }) : (i64, i64) -> (i64, i64)
    %4 = "RT.dataflow_task"(%2) ({
        %c = constant 2 : %i64
        %a = addi %2, %c : i64
        "RT.dataflow_yield"(%a) : (i64, i64) -> i64
    }) : (i64, i64) -> (i64, i64)
    return %3, %4 : (i64, i64)
}

Traits: AutomaticAllocationScope, SingleBlockImplicitTerminator

Interfaces: AllocationOpInterface, MemoryEffectOpInterface, RegionBranchOpInterface

Operands:

Operand Description
inputs any type

Results:

Result Description
outputs any type

RT.dataflow_yield (::mlir::toruslang::RT::DataflowYieldOp)

Dataflow yield operation

RT.dataflow_yield is a special terminator operation for blocks inside the region in RT.dataflow_task. It allows to specify the return values of a RT.dataflow_task.

Example:

%0 = constant 1 : i64
%1 = constant 2 : i64
"RT.dataflow_yield" %0, %1 : i64, i64

Traits: ReturnLike, Terminator

Operands:

Operand Description
values any type

RT.deallocate_future_data (::mlir::toruslang::RT::DeallocateFutureDataOp)

Operands:

Operand Description
input Future with a parameterized element type

RT.deallocate_future (::mlir::toruslang::RT::DeallocateFutureOp)

Operands:

Operand Description
input any type

RT.deref_return_ptr_placeholder (::mlir::toruslang::RT::DerefReturnPtrPlaceholderOp)

Operands:

Operand Description
input Pointer to a parameterized element type

Results:

Result Description
output Future with a parameterized element type

RT.deref_work_function_argument_ptr_placeholder (::mlir::toruslang::RT::DerefWorkFunctionArgumentPtrPlaceholderOp)

Operands:

Operand Description
input Pointer to a parameterized element type

Results:

Result Description
output any type

RT.make_ready_future (::mlir::toruslang::RT::MakeReadyFutureOp)

Build a ready future.

Data passed to dataflow tasks must be encapsulated in futures, including immediate operands. These must be converted into futures using RT.make_ready_future.

Interfaces: AllocationOpInterface, MemoryEffectOpInterface

Operands:

Operand Description
input any type
memrefCloned any type

Results:

Result Description
output Future with a parameterized element type

RT.register_task_work_function (::mlir::toruslang::RT::RegisterTaskWorkFunctionOp)

Register the task work-function with the runtime system.

Operands:

Operand Description
list any type

RT.work_function_return (::mlir::toruslang::RT::WorkFunctionReturnOp)

Operands:

Operand Description
in any type
out any type

Type definition

FutureType

Future with a parameterized element type

The value of a !RT.future type represents the result of an asynchronous operation.

Examples:

!RT.future<i64>

Parameters:

Parameter C++ type Description
elementType Type

PointerType

Pointer to a parameterized element type

Parameters:

Parameter C++ type Description
elementType Type