CTranslate2 1.13.0

New features

• Environment variable CT2_TRANSLATORS_CORE_OFFSET to pin parallel translators to a range of CPU cores (only for intra_threads = 1)
• [Python] Add some properties to the Translator object:
  • device
  • device_index
  • num_translators
  • num_queued_batches
  • model_is_loaded

Fixes and improvements

• Improve batch performance of target prefix
• Improve performance when the input batch contains sentences with very different lengths
• Improve beam search performance by expanding the batch size only after the first decoding step
• Optimize Transpose op on GPU for the permutation used in multi-head attention
• Remove padding in returned attention vectors
• Update Intel MKL to 2020.2