PBO, a subset. This comes from IOH. The functions are defined on various domains and the variables have two possible
values.

budget100
budget1000
budget10000
dim100
dim16
dim64
fid10
fid13
fid16
fid17
fid19
fid20
fid23
fid3
fid4
fid6
fid7
iid1
iid2
iid3
iid4
instrumentationOrdered
instrumentationSoftmax
instrumentationUnordered
workers1
workers10
