transformers

3cdaea47 - update doc for perf_train_cpu_many, add intel mpi introduction (#18576)

update doc for perf_train_cpu_many, add intel mpi introduction (#18576) * update doc for perf_train_cpu_many, add mpi introduction Signed-off-by: Wang, Yi A <yi.a.wang@intel.com> * Update docs/source/en/perf_train_cpu_many.mdx Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> * Update docs/source/en/perf_train_cpu_many.mdx Signed-off-by: Wang, Yi A <yi.a.wang@intel.com> Signed-off-by: Wang, Yi A <yi.a.wang@intel.com> Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>