<s>
METIS	B-Algorithm
is	O
a	O
software	O
package	O
for	O
graph	O
partitioning	O
that	O
implements	O
various	O
multilevel	O
algorithms	O
.	O
</s>
<s>
METIS	B-Algorithm
 '	O
multilevel	O
approach	O
has	O
three	O
phases	O
and	O
comes	O
with	O
several	O
algorithms	O
for	O
each	O
phase	O
:	O
</s>
