; (B) by striking paragraph (1) and inserting the following: (1) Department The term Department means the Department of Energy. (2) Exascale computing The term exascale computing means computing through the use of a computing machine that performs near or above 10 to the 18th power operations per second. ; and (C) in paragraph (6) (as redesignated by subparagraph (A)), by striking , acting through the Director of the Office of Science of the Department of Energy . (3) Department of energy high-end computing research and development program Section 3 of the American Super Computing Leadership Act ( 15 U.S.C. 5542 ), as renamed by paragraph (1), is amended— (A) in subsection (a)(1), by striking program and inserting coordinated program across the Department ; (B) in subsection (b)(2), by striking , which may and all that follows through multithreading architectures ; and (C) by striking subsection (d) and inserting the following: (d) Exascale computing program (1) In general The Secretary shall conduct a research program (referred to in this subsection as the Program ) for exascale computing, including the development of two or more exascale computing machine architectures, to promote the missions of the Department. (2) Execution (A) In general In carrying out the Program, the Secretary shall— (i) establish a National Laboratory partnership for industry partners and institutions of higher education for codesign of exascale hardware, technology, software, and applications across all applicable organizations of the Department; (ii) acquire multiple exascale computing systems at the existing Departmental facilities that represent at least two distinct technology options developed under clause (i)