ISPD98/IBM benchmarks

Modified Benchmarks - The old benchmarks have some inconsistencies with regard to number of nets and pins.  See modifications.txt for more info.  Thanks to Jurjen Westra for finding these errors and providing the modified route files.

ibm01.modified.txt
ibm02.modified.txt
ibm03.modified.txt
ibm04.modified.txt
ibm05.modified.txt
ibm06.modified.txt
ibm07.modified.txt
ibm08.modified.txt
ibm09.modified.txt
ibm10.modified.txt

Old Benchmarks - These benchmarks have inconsistencies with regard to number of nets and pins.  There are left here mainly for my reference.  I would advise you to use the modified benchmarks.

ibm01_gr_input.txt
ibm02_gr_input.txt
ibm03_gr_input.txt
ibm04_gr_input.txt
ibm05_gr_input.txt
ibm06_gr_input.txt
ibm07_gr_input.txt
ibm08_gr_input.txt
ibm09_gr_input.txt
ibm10_gr_input.txt