c48e90877f
This extension to the sparse tensor type system in MLIR opens up a whole new set of sparse storage schemes, such as block sparse storage (e.g. BCSR) and ELL (aka jagged diagonals). This revision merely introduces the type extension and initial documentation. The actual interpretation of the type (reading in tensors, lowering to code, etc.) will follow. Reviewed By: Peiming Differential Revision: https://reviews.llvm.org/D135206
MLIR-PyTACO: Implementing PyTACO with MLIR
TACO (http://tensor-compiler.org/) is a tensor algebra compiler. TACO defines PyTACO, a domain specific language in Python, for writing tensor algebra applications.
This directory contains the implementation of PyTACO using MLIR. In particular, we implement a Python layer that accepts the PyTACO language, generates MLIR linalg.generic OPs with sparse tensor annotation to represent the tensor computation, and invokes the MLIR sparse tensor code generator (https://mlir.llvm.org/docs/Dialects/SparseTensorOps/) as well as other MLIR compilation passes to generate an executable. Then, we invoke the MLIR execution engine to execute the program and pass the result back to the Python layer.
As can be seen from the tests in this directory, in order to port a PyTACO program to MLIR-PyTACO, we basically only need to replace this line that imports PyTACO:
import pytaco as pt
with this line to import MLIR-PyTACO:
from tools import mlir_pytaco_api as pt