Answers Database
M1.5 Map - M1.5 optimization performance decreases compared to M1.4 (CLB count increases in 1.5).
Record #4561
Product Family: Software
Product Line: FPGA Implementation
Product Part: map
Product Version: 1.5
Problem Title:
M1.5 Map - M1.5 optimization performance decreases compared to M1.4 (CLB count increases in
1.5).
Problem Description:
Urgency: standard
General Description:
Same design compiled in M1.5 has more CLB count that in M1.4.
Specified map options are the same in M1.4 and M1.5.
Solution 1:
It has been found that the M1.5 optimization algorithm
sorts components differently than M1.4 and that for some
cases this results in a performance degradation. It is
possible to set an environment variable that will restore
the M1.4 sort and performance:
setenv XIL_MAP_COMPNOSORT TRUE (Work Stations)
set XIL_MAP_COMPNOSORT = TRUE (PCs)
End of Record #4561 - Last Modified: 09/28/98 17:42 | 
