novoalign mapping

[abh]

Hi,
I want to use novoalign to map reads - allowing up to 15 mismatches for 100 bp paired-end reads

I am new to novoalign(went through the manual) and confused with some of the options like -t,-x,-r etc..

so for 15 mismatches i should give something like

-t 500

what would be -x then?

this is the command line i am thinking to run

novoalign -d genome -f A_1.fq A_2.fq -t 500 -r All -o SAM > out.sam

Is this correct?


thank you