Tensora 0.3.0

This release splits out the TACO binary into a separate package tensora-taco. This package is optional, making the TACO code generator optional. The native Tensora code generator is still included and used by default. TACO can be still be used as an alternative code generator if the tensora[taco] extra is installed.

Also, these other changes:

• The signature of tensor_method was changed so that the output_format and input_formats were combined into one formats dictionary
• Renamed PureTensorMethod to TensorMethod to reflect the decision that mutable assignments will never be supported in Tensora
• Most of the attributes on TensorMethod were made private
• Cache on a parsed Problem, instead of on the string versions of assignments and formats
• Raise a nice exception on TensorMethod when trying to broadcast to target indexes because there is no way for the dimensions of those indexes to be known. Generating such kernels via the tensora CLI is still permitted.
• Raise a nice exception when a tensor and and index have the same name in an assignment
• Remove Tensor.from_scalar; you could always use Tensora.from_lol
• Do not cast the result of a vector inner product a @ b to a Python scalar; leave it as a scalar Tensor

Tensora 0.2.0

This release removes a lot of partially implemented features, making the remaining behavior more reliable.

• Scalars are no longer supported. Users must use x() instead of x in all expressions.
• Added option to tensora CLI to allow choosing the external TACO binary as the code generator
• Better exceptions are raised for many kinds of invalid input
• Appended an underscore in front of many Python files to make is explicit that they are not part of the external API

Tensora 0.1.1

This is a quick release to fix some issues in the previous release.

• Raise a nice exception when no solution is found by the tensor algebra compiler
• Rename assemble to assemble everywhere so that the tense is consistent with compute and evaluate
• Fix bug where compute code was being emitted when assemble code was requested

Tensora 0.1.0

This release includes two major changes:

• A new tensor algebra compiler written in Python specifically for Tensora
  • Added tensora.TensorCompiler enum with values TensorCompiler.tensora and TensorCompiler.taco
  • tensor_method accepts an optional argument compiler: TensorCompiler that selects the tensor algebra compiler; tensora is the default
  • Split evaluate into evaluate_tensora and evaluate_taco to select the tensor algebra compiler; evaluate is an alias for evaluate_tensora
• A tensora CLI that will emit the code for given tensor algebra problems

And one minor change:

• Dropped support for Python 3.8 and 3.9 (allows for the match statement, which was helpful in writing the new tensora algebra compiler)