Reshetova G., Cheverda V., Koinov V. (2021) Comparative Efficiency Analysis of MPI Blocking and Non-blocking Communications with Coarray Fortran. In: Voevodin V., Sobolev S. (eds) Supercomputing. RuSCDays 2021. Communications in Computer and Information Science, vol 1510. Springer, Cham. DOI: 10.1007/978-3-030-92864-3_25
https://link.springer.com/chapter/10.1007/978-3-030-92864-3_25
It is not Open Access, but there is also a presentation here: