[雜事] 大家來找碴 Part 3

[bluetai (夏日香氣--孫藝珍)]

Since manufacturability is an important problem in nanometer
technology, this paper presents a cell placement methodology
to reduce the computational cost of OPC from linear dependence
upon the chip area to linear with the number of distinct cell
types used in the design.

The simple and clear concept of the placement methodology is
to place cells in regular structures. However, there are four
problems based on this concept.
1. The methodology does not consider the main issues of
traditional placement problems, e.g. wirelength and congestion.
2. The main problem of OPC occurs on interconnects. However,
this paper just considers the computation cost of OPC by cells
and does not consider the cost of OPC by interconnects. Since
regular placements cannot guarantee regular wiring structures,
the reduced computation cost of OPC by regular structures may
useless for final layout.
3. This paper defines all regular matrix elements with the same
height and width, implying that all cells have the same height
and width. In practice, it is impossible that all cell types
in a cell library have the same width.
4. The amplitude of OPC effect is related to the distance of
two objectives. Since different cells may have different widths,
it may not reasonable to assume that the OPC effect is just affected
by adjacent elements in x-axis.

For keeping completeness, authors should report all of the
IBM-PLACE benchmarks (IBM01~IBM18) in their experimental results.
Besides, please check your paper carefully, since there are some
typos in your paper. For example, "OPC is a [computational]
process..." in the 4th paragraph in Section 1 and "... position
corresponding [to] the ..." in the item 6 in Section 3.5.

--

--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.233.88
推 internal:老大貼了三篇 都沒有人要回應喔?
→ internal:第一行 importance-> important
推 bluetai:大家都在忙寫 commnet 吧? :p
→ bluetai:感恩感恩~ 改過來了~ :D
推 yellowfishie:倒數第9行 effect "is" just "affected" by
推 bluetai:這個糗大了~ 感恩感恩~ 親一下~ :p
※ 編輯: bluetai         來自: 140.112.233.88       (05/28 16:55)
推 meifc:可以再lab表演布魯親fish嘛XD
推 bluetai:以再lab表演可魯親fish嘛XD