taco: ensure assembly is included in timing for all benchmarks

[rohany]

Should the call to assemble() be included in benchmark timing @stephenchouca ?

[stephenchouca]

For comparisons against other Python libraries, I think it'd make sense to include the assembly time when benchmarking so that the comparison is more apples-to-apples, particularly since assembly can take a significant amount of time when the output is sparse. (Note though that assembly time can be significantly reduced if it is done with the compute step using a fused kernel. With the C++ API at least, you should be able to tell TACO to generate code that simultaneously assembles and computes the output by invoking TensorBase::setAssembleWhileCompute(true) before invoking compile.)

[rohany]

If setAssembleWhileCompute(true) is used, then does assemble even need to be called before compute?

[stephenchouca]

If setAssembleWhileCompute(true) is used, then does assemble even need to be called before compute?

You shouldn't have to call assemble in that case.