Quote:
Originally Posted by irwjager
Hey guys,
I'm starting to suspect (but do correct me if I'm wrong!) that the systems you're having trouble on don't support SSE3 CPU extensions. Gary - I don't believe your Athlon XP supports it (if memory serves me right, SSE3 is supported as of the Athlon64).
Ivo, Chris, what specs do your machines have?
StarTools was designed for multi-core 64-bit architectures with plenty of RAM and performs best on a quad core or higher. The rationale being that a CPU and memory upgrade is the cheapest and most versatile investment you can make when it comes to astrophotography (and many people already have very capable machines available without having to invest a cent!).
The 32-bit versions of the app have to emulate 64-bit instructions (basically by performing multiple 32-bit operations instead) which is quite a bit slower, they still rely on SSE3 to optimize some of the floating point operations. Please note that if you're running a 32-bit operating system on a 64-bit capable processor, this is still the case - you can only start to take full advantage of the native 64-bit capabilities of your CPU with a 64-bit operating system.
I will include a version that does not rely on SSE3 in the distribution - new download should be up in the next hour or so. Please let me know if that resolves your issue. I will also investigate doing a special 32-bit version of StarTools which should (hopefully) be less taxing on 32-bit architectures (however less accurate).
EDIT: Download is now up. |
Hi Ivo,
Find attached a print screen of the debug window. Might help, but you probably nutted it out in what you have mentioned above..
Shall give your new backward compatiable 32 bit version..
cheers Gary