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GDB – CS606 

Graded Discussion Board for this course will be available from Tuesday 9 July, 2013 to Wednesday 10th July, 2013 till 11:59 pm .


GDB Topic:


Click Here to download the research paper entitled “The StarJIT Compiler” and read it very carefully. You have to write the critical review of the above paper?


While posting your answer to GDB, following rules will apply. 

  1. Your answer should not exceed 200 words.
  2. Copied answer will result in 0 marks
  3. Any student found in cheating will be awarded "Poor" remarks with zero weightage.
  4. Avoid using same wording from the research paper.
  5. Write your answer only on the designated GDB interface; do not post it on MDB or via email.


NOTE: research paper entitled “The StarJIT Compiler” is attached bellow 


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Replies to This Discussion

StarJIT aik dynamic compiler hai jo java aur CLI (Common Language Infrastructure) byte codes ko compiler kar sakta hai , yeh aik bohat hi aham commpnent hai (Managed Runtime Environments)MRTES kay liay. mrtes ki proformance aur security StarJIT pay depend karti hai, keyon kay compiler kay jo bugs woh  easily exploit kiay ja saktay hain.

Startjit dynamic profile guided optimization (DPGO), kay tahat optimization karta hai , jo kay user aur software vender se tranparent hotay hain. DPGO kay module ko profile manager bhi kehtay hain ,compilation kay liay profile manager method choose karta hai ,aur jab yeh call hota hai to yeh compiler ko kehta hai kay high level ki opimization chaiy. Startjit kay pass bohat si profiles hoti hain jo kay is kay DPGO main istamal hoti hain. 

New static compiler bhi Profile guided optimzation (PGO) istamal kar rahay hain , is se in ki performace 20 % tak zayada ho gaiy hai on certain integer benchmarks.

Ager ab bhi samjh nai aai , to Allah hi hafiz hai

please dont copy paste translate in your words and try to add some new points and remove some points from this one

The goal of the StarJIT compiler is to build an infrastructure to research the influence of managed runtime environments on Intel architectures. If we take and overall view of StarJIT, we can summarized its featured as:

  1. The StarJIT compiler can compile both Java∗ and Common Language Infrastructure (CLI) byte codes, and it uses a single intermediate representation and global optimization framework for both Java and CLI.
  2. The StarJIT compileris designed to generate optimized code for the major Intel architectures and currently targets two Intel architectures: IA-32 and the Itanium Processor Family.
  3. In this paper, we describe the overall architecture (byte-code translators, global optimizer, and code generators) of the StarJIT compiler and the design of its intermediate representation, global optimizer, Itanium Processor Family code generator, and dynamic optimization framework.
  4. We present implementation details on the single static assignment (SSA)-based global optimizations [1], the Itanium Processor Family trace scheduler, and the profile-driven dynamic optimization framework.
  5. Managed Runtime Environments depend on dynamic compilation for performance and security.
  6. We can conclude that StarJIT is a dynamic and sensitive to the time and space efficiency and for this it uses optimized algorithms.


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