On Sat, Oct 26, 2013 at 2:08 AM, Tom Goddard goddard@... wrote:Hi Mandar,
Thresholding and compressing the spectrum data wont help because Sparky cannot read or write compressed files. The basic trouble is that 32-bit Windows and Mac Sparky versions use offsets into files that only go up to 2 Gbytes. I think the Linux Sparky handles large file offsets but Piotr claims that bruk2ucsf failed on Linux on a large file with the same error message (Failed initializing UCSF file with zeros). So maybe Linux Sparky in fact does not support files larger than 2 Gbytes. I thought Linux Sparky did support it because the Sparky source code has special code for 64-bit file offsets and the Sparky build scripts enable that for Linux. Some testing on Linux would be needed to see if large files work, but I dont have spectra 2 Gbytes to try it.TomOn Oct 24, 2013, at 7:51 PM, Mandar Naik wrote:-mandarI am wondering if removing spectral noise by ucsfdata -t will help this issue or not. The file size remains identical after this treatment but the output file can be compressed a lot more by gzip.With regards