Pre-exascale accelerated application development: The ORNL Summit experience. - Lixiang Luo; Tjerk P. Straatsma; Luis Enrique Aguilar-Suárez; Ria Broer; Dmytro Bykov; Eduardo F. D'Azevedo; Shirin S. Faraji; Kalyana C. Gottiparthi; Coen de Graaf; James Austin Harris; Remco W. A. Havenith; Hans Jørgen Aagard Jensen; et al. (IBM J. Res. Dev., 2020)