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★ 既然PCI是最主要的瓶頸,為什麽沒人對它踢一腳?

(2012-11-30 19:42:44) 下一個

★  既然PCI是最主要的瓶頸,為什麽沒人對它踢一腳?

★  PCI vs InfiniBand

 

• 請教各位大俠:就PC的體係結構而言,既然PCI是最主要的瓶頸,為什麽沒人對它踢一腳,將PC的體係結構大刀闊斧地改革一下呢?

   做久了挨踢,也得踢一腳、爽一把不是?~~

   -star-sun-給 star-sun 發送悄悄話 star-sun 的博客首頁 star-sun 的個人群組 (159 bytes) (6 reads) 11/30/12

   • InfiniBand能用到個人電腦上嗎? -star-sun-給 star-sun 發送悄悄話 star-sun 的博客首頁 star-sun 的個人群組 (0 bytes) (0 reads) 11/30/12

• 讓我們來看看InfiniBand的遠見。至於何時能用於個人電腦,在於其性價比何時能被大眾接受,一己之見,歡迎探討。

Let's read InfiniBand's Vision. Whether it can be practically deployed into PC world depends on the price/performance ratio, I think.

InfiniBand was originally envisioned[by whom?] as a comprehensive "system area network" that would connect CPUs and provide all high speed I/O for "back-office" applications. In this role it would potentially replace just about every datacenter I/O standard including PCI, Fibre Channel, and various networks like Ethernet. Instead, all of the CPUs and peripherals would be connected into a single pan-datacenter switched InfiniBand fabric. This vision offered a number of advantages in addition to greater speed, not the least of which is that I/O workload would be largely lifted from computer and storage. In theory, this should make the construction of clusters much easier, and potentially less expensive, because more devices could be shared and they could be easily moved around as workloads shifted. Proponents of a less comprehensive vision saw InfiniBand as a pervasive, low latency, high bandwidth, low overhead interconnect for commercial datacenters, albeit one that might perhaps only connect servers and storage to each other, while leaving more local connections to other protocols and standards such as PCI.[citation needed]

As of 2009 InfiniBand has become a popular interconnect for high-performance computing, and its adoption as seen in the TOP500 supercomputers list is faster than Ethernet.[6] In the recent years InfiniBand has been increasingly adopted in the enterprise datacenters.

for more details, check out this: http://en.wikipedia.org/wiki/InfiniBand


Question:
As for the PC architecture, PCI is the main bottleneck against the performance. Why didn't we kick it out, dramatically improve PC architecture?  
Can we introduce InfiniBand into PC world?
Thanks.

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部分跟帖: 

• ★ PCI vs. InfiniBand -star-sun-給 star-sun 發送悄悄話 star-sun 的博客首頁 star-sun 的個人群組 (155 bytes) (55 reads) 11/30/12 19:44:11
• 做慣挨踢的人,沒人踢的時候是不會自己去踢一腳的。 -π-給 π 發送悄悄話 π 的個人群組 (230 bytes) (18 reads) 12/1/12 11:57:17
  • IT,有人譯作挨踢,有人譯作愛踢,喜好不同啊~ ISA, EISA, PCI, -star-sun-給 star-sun 發送悄悄話 star-sun 的博客首頁 star-sun 的個人群組 (335 bytes) (10 reads) 12/1/12 15:38:57
• 因為徹底改PCI意味著所有的界麵全改。而且,PCI-E x16,2.0, 3.0 -老忽叔叔-給 老忽叔叔 發送悄悄話 老忽叔叔 的個人群組 (0 bytes) (7 reads) 12/2/12 09:39:57
  • 小忽的假想:一位垂危的病人,正在舊金山醫院裏做遠程3D的X射線斷層成像(CT s -star-sun-給 star-sun 發送悄悄話 star-sun 的博客首頁 star-sun 的個人群組 (889 bytes) (9 reads) 12/2/12 10:37:14





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