Building On Previous Exercises

Be sure to complete the Half & Half and Ranges exercises first.

Code To Implement

Warning: Invoke NucleobaseUtils.countRange where appropriate.

class:	CoarseningNucleobaseCounter.java
methods:	constructor numRanges count
package:	count.exercise
source folder:	student/src/main/java

method: public CoarseningNucleobaseCounter(int numRanges) (sequential implementation only)

To support the required count method below, we will need to hang onto the number of ranges as an instance variable.

method: public int numRanges() (sequential implementation only)

Getter method for numRanges.

method: public int count(byte[] chromosome, Nucleobase targetNucleobase) (parallel implementation required)

To coarsen our parallel counting of an array of nucleobases, we must use our previously created Ranges slice method and count each Range in parallel.

In the computation graph below, we depict a chromosome of length 42 sliced into 4 Ranges:

There are many incantations of the join_fork_loop to choose from. Be sure to select the correct one.

Choose the one which iterates over your array of Ranges.

class:	_CoarseningNucleobaseCounterTestSuite.java
package:	count.exercise
source folder:	testing/src/test/java

file:

nucleobase-count-coarsen-pledge-acknowledgments-citations.txt

More info about the Honor Pledge