RAM disguised as an SSD? What will they come up with next?
Micron has become the latest chipmaker to announce a compute express link 2.0-compliant memory expansion module capable of strapping up to 256GB of DRAM to a spare PCIe x8 interface.in earnest in early 2019, it wasn't until recently that compatible CPUs from AMD and Intel were readily available. The chipmakers' respective 4th-gen Epycs and Xeons are the first to support the standard.for connecting CPUs, memory, accelerators, and other peripherals, built atop PCIe.
with its CZ120 memory expansion modules, which actually use the same E3.S 2T form factor found in some datacenter SSDs.The modules are available in 128GB and 256GB capacities and utilize a"unique dual-channel memory architecture" capable of delivering 36GB/s of bandwidth. It's not exactly clear how Micron has managed to do this as a PCIe 5.0 x8 interface is only good for around 32GB/s. We've reached out to the chipmaker for comment, but if we had to guess, the chipmaker is quoting the memory bandwidth delivered by the DRAM to the CXL controller, not the host system.Micron sees two key use cases for these modules. The first involves the ability to add"incremental" memory capacity to support growing workloads.
The second use case involves memory bandwidth constrained workloads — a common bottleneck in high-performance compute applications. If you've maxed out the memory bandwidth of your system, CXL memory modules offer a way to stretch beyond that. In the case of Micron's CZ120, each module is good for an additional 36GB/s of memory bandwidth. That means those eight modules, from the previous example, are also good for an additional 256GB/s of bandwidth.
While attaching memory over PCIe might sound like a bad idea if you care about latency — there's a reason memory DIMMS are crammed as close to the socket as possible — it's not as big a problem as you might think. In fact, we're told the latency is
Belgique Dernières Nouvelles, Belgique Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
‘Barbie' joins $1 billion club, breaks another record for female directorsIn just three weeks in theaters, “Barbie” is set to sail past $1 billion in global ticket sales, breaking a record for female directors that was previously held by Patty Jenkins.
Lire la suite »
‘Barbie’ Joins $1 Billion ClubIn modern box office history, just 53 movies have made over $1 billion, not accounting for inflation.
Lire la suite »
Katie Holmes Joins Hollywood’s Cork Wedge ConspiracyKatie Holmes joins Amal Clooney, Nicola Peltz Beckham and Lily-Rose Depp’s cork wedge conspiracy.
Lire la suite »
Strictly Come Dancing announces sixth celebrity – and we're so excitedThe star joins the likes of Krishnan Guru-Murthy and Amanda Abbington
Lire la suite »
German fusion start-up joins with US university to build laser facility\n\t\t\tJournalists in 50+ countries follow the constant flow of money made and lost in oil & gas while\n\t\t\ttracking emerging trends and opportunities in the future of energy. Don’t miss our exclusive\n\t\t\tnewsletter, Energy Source.\n\t\t
Lire la suite »
German fusion start-up joins with US university to build laser facility\n\t\t\tJournalists in 50+ countries follow the constant flow of money made and lost in oil & gas while\n\t\t\ttracking emerging trends and opportunities in the future of energy. Don’t miss our exclusive\n\t\t\tnewsletter, Energy Source.\n\t\t
Lire la suite »