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Dear Colleagues: Through your help an R related installation issue was resolved, but I now have the following usage issue. On any "get.var.ncdf" usage I am seeing: Error: in routine alloca() there is a stack overflow: thread 0, max 535822282KB, used 0KB, request 24B The same error is posted on a file as small as 50MB and as large as 500GB, with ulimit set to unlimited. I

...ma_pos)*exp(-1/2*(x-expect_position)^2/sigma_pos) } #### Now the physical parameters tau<-0.1 beta<-1/tau St<-tau ### since I am in dimensionless units and tau is already in units of 1/|alpha| D=2e-2 q<-2*beta^2*D ############### Now the grid in space and time time<-5 # time extent tsteps<-501 # time steps newtime<-seq(0,time,len=tsteps) #### Now the things specific for the dynamics along x lam1<- -beta/2*(1+sqrt(1+4*St)) lam2<- -beta/2*(1-sqrt(1+4*St)) xmin<- -0.5 xmax<-0.5 x0<-0.1 vx0<-x0 nx<-101 ## grid intervals along x newx<-seq(xmin,xmax,len=nx) #...

Hello everyone, I am trying to solve 2D differential equations using finite difference scheme in R. I have been able to work with the equations with only one spatial dimensions but I want to extend it to the two dimensional problem. For example i can simulate one dimensional diffusion using a code like the following. But I want to write a similar code for,say, a two dimensional diffusion

Dear all, I am plotting 3 plots into the same x and y axis. I want the first one to be painted red with a continuous line The second one green with a continuous line and the third one blue with a continuous line plot(max_power(data),ylim=c(-120,-20))     par(new=T)     plot(min_power(data),ylim=c(-120,-20))     par(new=T)     plot(mean_power(data),ylim=c(-120,-20))     par(new=F) Is it also a

Hi everyone, I was trying to mode the following exercise using R. The question: Set up a one pool model using numericintegration. The model will run from time 1 to time 30 using a time step of 1.The pool (A) will be fed by flux "inA" at a rate of 5 units per hour anddrained by flux "outA" at a rate of 20% per hour. At time 0, A has 5units. At time 30, what is the pool size of

Hi, I'm trying to plot a field obtained from the atmospheric model WRF-NMM which uses a "Rotated Lat-Lon? map projection. The WRF documentation mentions that: ? Rotates the earth's lat/lon grid such that the intersection of the equator and prime meridian is at the center of the model domain. ? Within the rotated framework the grid spacing is constant, but in an earth-relative

On Wed, Oct 12, 2016 at 10:53 AM, Hal Finkel <hfinkel at anl.gov> wrote: > I don't think that Clang/LLVM uses it by default on x86_64. If you're using -Ofast, however, that would explain it. I recommend looking at -O3 vs -O0 and make sure those are the same. -Ofast enables -ffast-math, which can legitimately cause differences. > The following tests pass at "-O3" and