Status: New
Owner: [email protected]
Labels: Type-Bug Priority-Medium
New issue 2954 by [email protected]: navier-stokes.js: fishy loop in
set_bnd function
http://code.google.com/p/v8/issues/detail?id=2954
The code in the set_bnd function in navier-stokes.js has a loop that looks
weird:
for (var j = 1; i <= height; i++) {
x[j * rowSize] = -x[1 + j * rowSize];
x[(width + 1) + j * rowSize] = -x[width + j * rowSize];
}
https://code.google.com/p/v8/source/browse/branches/bleeding_edge/benchmarks/navier-stokes.js#96
It looks like this could be a bug in the benchmark and the original code
the benchmark is based on. Without knowing too much about the algorithm
implemented, I would assume the code should be changed to count on j and
check j against height in the loop condition:
for (var j = 1; j <= height; j++) {
x[j * rowSize] = -x[1 + j * rowSize];
x[(width + 1) + j * rowSize] = -x[width + j * rowSize];
}
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