Semiconductor & Computer Engineering
Template:mpu PEZY-1 was a first generation many-core microprocessor developed by PEZY in 2012. PEZY-1 contains 2 ARM926 cores (ARMv5TEJ) along with 512 simpler RISC cores. Operating at 533 MHz, the processor is said to have peach performance of 533 GFLOPS (single-precision) and 266 GFLOPS (double-precision). PEZY-1 was designed using 220 million gates and manufactured on TSMC's 40 nm process.
The PEZY-1 is used for image processing devices and various medical instruments. In 2014 PEZY introduced their second generation many-core processor, the PEZY-SC, with twice as many cores.
Cache
PEZY-1's cache is separate from the ARM926's cache which has an L1$ of 16KB (2x) and no L2$.
| Cache Info [Edit Values] | ||
| L1$ | 128 KiB 131,072 B 0.125 MiB |
|
| L2$ | 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB |
|
| L3$ | 0 KiB 0 MiB 0 B 0 GiB |
No L3$ |
Memory controller
| Integrated Memory Controller | |
| Type | DDR3-1333 |
| Controllers | 1 |
| Channels | 4 |
| Bandwidth (single) | 10,666 MB/s |
| Bandwidth (dual) | 21,333 MB/s |
| Bandwidth (quad) | 42,666 MB/s |
| Max memory | 64 GiB |
Expansions
PEZY-1 Quad PCI Board
PEZY has developed a Quad-PEZY-1 PCI board for their microprocessors which has 4 PEZY-1 for a total of 2,048 PE cores (along with 8 ARM cores). The board is equipped with 64 GB of memory for a total bandwidth of 200 GB/s. PEZY reports the total computational power for the board to be at 2.56 TFLOPS with a power consumption of 180 Watts.
Documents
| l1$ size | 128 KiB (131,072 B, 0.125 MiB) + |
| l2$ size | 1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) + |
| l3$ description | No L3$ + |
| l3$ size | 0 MiB (0 KiB, 0 B, 0 GiB) + |