> Hi Glenn, > > Thanks for your reply. > > My machine has 8GB RAM and maximum java heap size shown in MATLAB > was 2GB. Hence I tried to increase java heap size to MAX 2GB and compiled > my old ROACH-1 design (mdl file later updated using > 'update_casper_blocks') which consists of iADC and snap block and found > that it is taking 1:02hrs. But in default condition of 128MB took 53:00 > minutes. > > This is bit surprising.
Since you're using more memory for the Matlab Java heap, you might be running out of physical memory and have begun paging to virtual memory. 8 GB is marginal for these newer tools, unfortunatly. Have you looked at the system activity with vmstat while compiling? John > > Regards, > Sandeep C. Chaudhari > GMRT-TIFR > > > On Tue, 7 Apr 2015, G Jones wrote: > >> >> Check your java heap size setting in MATLAB. The default value is often >> way >> too low. Search the mailing list archive for more details. >> >> On Apr 7, 2015 2:02 AM, "Chaudhari Sandeep C." >> <[email protected]> >> wrote: >> Dear All, >> >> I started using ROACH-2 toolflow recently. When I tried >> to compile simple ROACH-1 design of iADC board with snap block >> it took 45-minuts to compile this design. Now when I started to >> compile ROACH-1 f-engine design on previous day and it is still >> in the stage of System Generation today. >> Can anyone tell why it is taking so much long time for >> compilation and how to reduce this compilation time? >> >> The installation details are as follows : >> >> --------------------------------------------------------------------- >> MATLAB Version: 8.0.0.783 (R2012b) >> MATLAB License Number: 732809 >> Operating System: Linux 3.13.0-46-generic #79-Ubuntu SMP Tue Mar >> 10 20:06:50 UTC 2015 x86_64 >> Java Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java >> HotSpot(TM) 64-Bit Server VM mixed mode >> --------------------------------------------------------------------- >> MATLAB Version >> 8.0 (R2012b) >> Simulink Version >> 8.0 (R2012b) >> DSP System Toolbox Version >> 8.3 (R2012b) >> Fixed-Point Toolbox Version >> 3.6 (R2012b) >> Signal Processing Toolbox Version >> 6.18 (R2012b) >> Xilinx System Generator Version >> 14.2 production build >> >> >> >> Thanks & regards, >> Sandeep C. Chaudhari >> GMRT,TIFR >> >> >> > > --
