I did two 1P ranges for GFN17 running on AMD cards under Windows 7 (64 bit), but when I try to upload the files, I get the error in the thread title. What's the problem? Do I need the checkpoint files as well?
The cards are Radeon HD 5770 and HD 6450, the latter with a mild core overclock. When I started the executables, I also got this message in the command prompt: "warning: #warning directive: No built-in carry flag support known, using plain C code", though both ran to conclusion.
EDIT: k, posted too soon, it would seem. Looks like the problem was me moving the files to another computer and trying to upload them from there. It worked when I did it from the original host.