File Formats

We will talk about a few different file formats in this document and in our tools. They are:

• fqir pickles - my_model.pt

• femtofiles - my_model.femto

• program files - 0PROG_A, 0PROG_D

• memory image zip - bitfile.zip

FQIR Pickles

Femtosense Quantized Intermediate Representation. These are torch models that have been quantized through the Femtosense tooling. They are contain the model information and the weights and can be used to generate all the other formats. This is the most general format of your model in quantized form.

Femtofiles

Femtofiles are the new compiled format for models. Using our new firmware these contain the model weights and the low level instructions for your model to run on SPU-001. You cannot get FQIR back from these files as they are a compiled format to run on SPU-001. You can run them on SPU-001 and send inputs and get outputs.

Program Files

This is the old format for our compiled models. They are equivalent to femtofiles but less efficient. They will be deprecated soon.

Memory Image Zip

The bitfile.zip are for femtosense debugging and not common for customers.