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== Memory controller == | == Memory controller == | ||
+ | For main memory, the PEZY-SC4 supports 4 channels of 64-bit DDR5-4000 memory with ECC support for a total aggregated bandwidth of 107.3 GiB/s | ||
{{memory controller | {{memory controller | ||
|type=DDR5-4000 | |type=DDR5-4000 | ||
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|controllers=4 | |controllers=4 | ||
|channels=4 | |channels=4 | ||
+ | |width=64 bit | ||
|max bandwidth=119.2 GiB/s | |max bandwidth=119.2 GiB/s | ||
+ | |bandwidth schan=29.8 GiB/s | ||
+ | |bandwidth dchan=59.6 GiB/s | ||
|bandwidth qchan=119.2 GiB/s | |bandwidth qchan=119.2 GiB/s | ||
}} | }} | ||
+ | |||
+ | In addition to main memory bandwidth, the PEZY-SC4 supports Wide-IO with a width of 4,096 bit, twice of the {{\\|PEZY-SC3|SC3}}. As with the SC3, the SC4 will use [[ThruChip Interface (TCI)]] interfaces in order to communicate with the TCI-DRAM chips. This chip incorporates 8 interfaces, operating at 3 GHz for a bandwidth of 2.8 TiB/s per interface for a total aggregated bandwidth of 22.35 TB/s - twice the bandwidth of its predecessor. | ||
{{memory controller | {{memory controller |
Revision as of 00:13, 3 November 2017
Template:mpu PEZY-SC4 (PEZY Super Computer 4) is fifth generation many-core microprocessor planned by PEZY. The SC4 incorporates 16,192 cores, twice times as many cores as its predecessor.
Planned to be fabricated on TSMC's 5 nm process, PEZY-SC5 operates at 1.6 GHz and consume around 640 W while delivering performance in the order of 210 TFLOPS (HP), 105 TFLOPS (SP), and 52.5 TFLOPS (DP).
Memory controller
For main memory, the PEZY-SC4 supports 4 channels of 64-bit DDR5-4000 memory with ECC support for a total aggregated bandwidth of 107.3 GiB/s
Integrated Memory Controller
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In addition to main memory bandwidth, the PEZY-SC4 supports Wide-IO with a width of 4,096 bit, twice of the SC3. As with the SC3, the SC4 will use ThruChip Interface (TCI) interfaces in order to communicate with the TCI-DRAM chips. This chip incorporates 8 interfaces, operating at 3 GHz for a bandwidth of 2.8 TiB/s per interface for a total aggregated bandwidth of 22.35 TB/s - twice the bandwidth of its predecessor.
Integrated Memory Controller
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Expansions
With the SC4, PEZY plans to expand on the custom optics interface that was designed for the PEZY-SC3 for up to 512 lanes.
has ecc memory support | true + and false + |
max memory bandwidth | 119.2 GiB/s (122,060.8 MiB/s, 127.99 GB/s, 127,990.025 MB/s, 0.116 TiB/s, 0.128 TB/s) + and 22,886.4 GiB/s (23,435,673.6 MiB/s, 24,574.085 GB/s, 24,574,084.881 MB/s, 22.35 TiB/s, 24.574 TB/s) + |
max memory channels | 4 + and 8 + |
supported memory type | DDR5-4000 + |