|
Hi All, I am trying to run a video codec on c64x How much it is logical to have a gap between emulator and simulator. up to what order they can be bridged. what are the things need to taken care of to minimise this gap. -- Regards Sri |
|
|
H/W simulator gap
Started by ●October 6, 2004
Reply by ●October 7, 20042004-10-07
|
Hello Sri,
I do not quite understand your question. Could you supply some more
details about what you are trying to do.
mikedunn
Sri <l...@gmail.com> wrote:
|
|
|
Reply by ●October 7, 20042004-10-07
|
I guess what he trying to say is that a pice of code ( video codec) in this case give some profile results when running on the simulator. On running the same code in the hardware ie may be on evm board, the profile results are comming diffrent or may be inflated. As I guess one thing is that external slower memory might be playing the role of inflating results ( read diff profile results EVM vs SIM )despite all cache configuration etc. done. Can they take care of some things(?) that can help in bridging the gap to minimum if not same. regards.. --- Mike Dunn <> wrote: > Hello Sri, > > I do not quite understand your question. Could you > supply some more details about what you are trying > to do. > > mikedunn > > Sri <> wrote: > Hi All, > I am trying to run a video codec on c64x > How much it is logical to have a gap between > emulator and simulator. > up to what order they can be bridged. > what are the things need to taken care of to > minimise this gap. > > -- > Regards > Sri > _____________________________________ > Note: If you do a simple "reply" with your email > client, only the author of this message will receive > your answer. You need to do a "reply all" if you > want your answer to be distributed to the entire > group. > > _____________________________________ > About this discussion group: > > To Join: Send an email to > To Post: Send an email to > > To Leave: Send an email to > Archives: http://www.yahoogroups.com/group/c6x > > Other Groups: http://www.dsprelated.com > > Yahoo! Groups Links _______________________________ |
|
|
Reply by ●October 7, 20042004-10-07
|
I asked for the question of the gap between simulator and emulator before. My experience is that the gap gets smaller as the processing image size gets smaller. For a QCIF size video, the gap is around 15% of the emulator result. It increases to 30~40% in CIF format. As to D1, the percentage of the gap is 45~60%, depends on the content complexity of the video sequence. It seems like the gap is because of simulators cannot simulate the memory operation very well, so to minimize the gap, minimize the occupied memory by your program. Hope this helps. Best, Quentin --- gagan singh <> wrote: > > > I guess what he trying to say is that a pice of code > ( > video codec) in this case give some profile results > when running on the simulator. > On running the same code in the hardware ie > may be on evm board, the profile results are comming > diffrent or may be inflated. > As I guess one thing is that > external > slower memory might be playing the role of inflating > results ( read diff profile results EVM vs SIM > )despite all cache configuration etc. done. > Can they take care of some things(?) that can help > in > bridging the gap to minimum if not same. > > regards.. > > --- Mike Dunn <> wrote: > > > Hello Sri, > > > > I do not quite understand your question. Could > you > > supply some more details about what you are trying > > to do. > > > > mikedunn > > > > Sri <> wrote: > > > > > > Hi All, > > I am trying to run a video codec on c64x > > How much it is logical to have a gap between > > emulator and simulator. > > up to what order they can be bridged. > > what are the things need to taken care of to > > minimise this gap. > > > > -- > > Regards > > Sri > > > > > > > > > > > > _____________________________________ > > Note: If you do a simple "reply" with your email > > client, only the author of this message will > receive > > your answer. You need to do a "reply all" if you > > want your answer to be distributed to the entire > > group. > > > > _____________________________________ > > About this discussion group: > > > > To Join: Send an email to > > > > > > To Post: Send an email to > > > > To Leave: Send an email to > > > > > > Archives: http://www.yahoogroups.com/group/c6x > > > > Other Groups: http://www.dsprelated.com > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > _______________________________ > |
