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Gen-Z Points to New Memories

Prototypes, plans for DIMMs emerge
8/10/2017 03:30 AM EDT
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markhahn0
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latency?
markhahn0   8/12/2017 1:17:27 AM
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bandwitdth is easy; latency is hard.  none of this appears to address the fact that latency is what drives really salient performance improvements.  is there some assumption here that everything (processing) will get vastly wider, so only bandwidth matters?  that is, that there is plentiful data-level parallelism?

IB and related HPC interconnects are probably pushing the boundaries - and have traditionally emphasized a balance between BW and latency.  And yet, IB latency is still in the 1 us range, while dram is consistently 20x lower, and storage like NVMe more like 100x higher.  it's hard to imagine why disaggregating everything to IB-equivalent is going to help

realjjj
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....
realjjj   8/11/2017 12:29:08 PM
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The longer term future for memory is embedded. 3D monolithic ICs with blocks of 3D NV memory.

Suppose the question becomes, what compute unit has the most value at that point? Are the memory guys gonna swallow the CPU/GPU guys or the other way around? Or maybe embedded memory remains as is today and the foundries take over this segment. Guess it depends on how heavily memory makers invest in turning their products into a processor as quickly as possible. Nvidia and WD would be an interesting merger in 5-10 years from now, isn't it?

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