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UID:submissions.supercomputing.org_SC24_sess744_ws_memo104@linklings.com
SUMMARY:ACID Support for Compute eXpress Link Memory Transactions
DESCRIPTION:Ellis Giles (Elex Technologies, Coda Solutions) and Peter Varm
 an (Rice University)\n\nThe need to support a large volume of transactions
  on shared data is increasing to meet explosive growth in worldwide data a
 nd processing demands. Emerging memory architectures such as CXL are incre
 asing in popularity; CXL allows for dynamic demand-sensitive resizing of a
 ggregated memory, support for heterogeneous memory types, and sharing of d
 ata amongst supported processors and devices. However, while this new memo
 ry architecture alleviates many concerns in datacenter and HPC architectur
 es, data integrity when using memory-based transactions over CXL faces man
 y challenges.\n\nTo solve for these challenges, we describe a novel soluti
 on for providing ACID (Atomicity, Consistency, Isolation, Durability) tran
 sactions in a CXL-based memory architecture. We call this solution Transac
 tional CXL, or TCXL, which requires no changes to the existing processor m
 icroarchitectures and is implemented in a software library with a back-end
  controller that can be embedded in a CXL controller, as a stand-alone CXL
  device, or host implemented.\n\nTag: Data Movement and Memory, Emerging T
 echnologies\n\nRegistration Category: Workshop Reg Pass\n\nSession Chairs:
  Ron Brightwell (Sandia National Laboratories), Maya Gokhale (Lawrence Liv
 ermore National Laboratory (LLNL)), Kyle Hale (Oregon State University), a
 nd Ivy Peng (KTH Royal Institute of Technology)\n\n
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