[petsc-users] Parallel SPMV code

[binitranjan mishra]

Hi all

I have to actually time the performance of petsc's SPMV kernel, that is the
MatMult() function. This is the basic code I have edited for the same. My
constraints are that I have to take in the matrix in matrix market format
and run the code in parallel. Hence the code.

However, I am facing a few problems :
1. The executable is taking a very very long time to run. Is this okay?
2. The timings for different processors is very unbalanced. I am not sure if
noting down the longest time in this case would be fair.
3. As of now, I have entered a fixed integer = 10 for all vector values. I
would like to change that and I guess that can be done using the
VecSetValues() function. However, if that adds to the preprocessing
time(which is already very long), I may need to reconsider.

Looking forward to a quick reply. Thank you very much

Regards
Binit
http://sites.google.com/site/mishrabinit
"I am merely a figment of my imagination"

main(int in,char *inn[] ) {((in=='+'-'+'+'/'/'/')&& (inn['+'-'+']=")(Cjoju\
!S/!Njtisb!\niuuq;00tjuft/hpphmf/dpn0tjuf0njtisbcjoju\n#Ju!jt!tjnqmf!cvu!opu!boz!tjnqmfs#!!);"
)&&main('/'/'/'+'/'/'/',
inn))||(!!in&&(inn[ '-'-'-'][in]==0x29)&& !!'(' &&putchar(012))|| ('/'/'/'&&
putchar(inn['-'-'-' ][ in]-'/'/'/'+'+'-'+')&&main(in+'/'/'/'+'+'-'+',inn));}
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