Hi!
Using Xilinx flow (command line, ISE 13.4)... 32b version vs 64b (under Linux,
64b OS)... memory usage:|| | 32b | 64b | | xst | 1614M | 2986M | | map | 1563M | 2889M | | par | 1365M | 2404M |
Also the 32b runtime is faster than 64b....
The above table is from a Kintex-7 target running on a i5 machine, 8G RAM.
Similar numbers are seen for a Virtex-6 target, i7 machine, 24G RAM, different Linux flavor.
Does this look normal? Looks like if the design fits the memory space available for 32b binaries they are a much better choice.