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PEZY-SCnp - PEZY
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Revision as of 04:02, 23 June 2017 by Inject (talk | contribs) (Cache)

Template:mpu PEZY-SCnp (SC - Super Computer; np - New Package) is a revised version of the PEZY-SC model by PEZY introduced in may of 2016. The new model uses a slightly larger package, lower core voltage, slightly higher core frequency, and thus higher performance. The PEZY-SCnp is said to deliver 1.57 TFLOPS (double-precision). PEZY also upgraded the connections from PCIe Gen2 to Gen3. As with the PEZY-SC, the SCnp is also manufactured on TSMC's 28HPC+ (28 nm process).

Architecture

Main article: PEZY-SC §Architecture

The PEZY-SCnp's architecture is identical to the PEZY-SC.

Cache

PEZY-SC's cache is separate from the ARM926's cache which has an L1$ of 32 KiB (2x) and 64 KiB L2$ (shared).

[Edit/Modify Cache Info]

hierarchy icon.svg
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$3 MiB
3,072 KiB
3,145,728 B
L1I$2 MiB
2,048 KiB
2,097,152 B
1024x2 KiBper processor element 
L1D$1 MiB
1,024 KiB
1,048,576 B
512x2 KiBper 2 processor elements 

L2$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  4x2 MiBper citywrite-back

L3$8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
  4x2 MiBper prefecture 

Memory controller

Integrated Memory Controller
Type DDR4-1866
Controllers 1
Channels 8
Bandwidth (single) 14,933 MB/s
Bandwidth (dual) 29,866 MB/s
Bandwidth (quad) 59,732 MB/s
Bandwidth (octa) 119,464 MB/s

Expansions

Template:mpu expansions

Facts about "PEZY-SCnp - PEZY"
l1$ size3,072 KiB (3,145,728 B, 3 MiB) +
l1d$ descriptionper 2 processor elements +
l1d$ size1,024 KiB (1,048,576 B, 1 MiB) +
l1i$ descriptionper processor element +
l1i$ size2,048 KiB (2,097,152 B, 2 MiB) +
l2$ descriptionper city +
l2$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
l3$ descriptionper prefecture +
l3$ size8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +