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Nadav, Arnold, et al., I have a number of loops that I would like us to be able to autovectorize (common, for example, in n-body inter-particle force kernels), and the problem is that they look like this: for (int i = 0; i < N; ++i) { if (r[i] > 0) v += m[i]*...; } where, as written, m[i] is not accessed unless the condition is true. The general problem (as is noted by the loop

This seems to be a recurrent topic, but I don't remember hearing a definitive answer. I also apologies for cross-posting. Say I have a numerical response variable and a bunch of multi-level factors I want to use for modeling. I don't expect factor interaction to be important so there will be no interactions in the model. All this would be a perfect job for ANOVA except for one additional

Hi Hal, Yes, I agree that this is a problem that prevents vectorization in many loops. Another problem that we have is that sunk loads don’t preserve their control dependence properties. For example in the code below, if we sink the load into the branch then we can't vectorize the loop. x = A[i] if (cond) { sum += x; } I agree with you that checking the first and last element for each

----- Original Message ----- > Hi Hal, > > Yes, I agree that this is a problem that prevents vectorization in > many loops. Another problem that we have is that sunk loads don’t > preserve their control dependence properties. For example in the > code below, if we sink the load into the branch then we can't > vectorize the loop. > > x = A[i] > if (cond) { >

This should be easy but it does not work I have 3 vectors*(activeT,inactT, activeR)*, the idea is that if the last value in inactT is higher than the last in activeT this value has to be append in active T and the last value in another vector call activeR has to be repeated. (at the bottom you can find the vectors) I have done this: activeT=round(as.numeric(activeT)) inactT=

On 1 November 2013 13:40, Hal Finkel <hfinkel at anl.gov> wrote: > Done = false; > FirstI = -1, LastI = -1; > while (!Done) { > for (I = FirstI+1; I < N; ++I) > if (r[i] > 0) { > FirstI = I; > break; > } > > for (; I < N && !page_bound(&m[i]) && ...; ++I) { > if (r[i] > 0) > LastI = I; >

...(Zdet)) { Zdet <- as.matrix(cbind(Zdet, dumvar)) } else { Zdet <- as.matrix(dumvar) } } Zy <- as.matrix(object$datamat[, 1:(K * (p + 1))]) cov<-summary(object)$covres forecast <- matrix(NA, ncol = K, nrow = n.ahead) lasty <- c(Zy[nrow(Zy), ]) for (i in 1:n.ahead) { lasty <- lasty[1:(K * p)] Z <- c(lasty, Zdet[i, ]) rv<-mult*matrix(rmvsnorm(1, dim = dim(cov)[1], Omega = cov), ncol = 1) forecast[i, ] <- B %*% Z + rv temp <- forecast[i, ] lasty <-...

I think that the best way to move forward with the vectorization of this loop is to make progress on the vectorization pragmas. The LoopVectorizer is already prepared for handling pragmas and we just need to add the clang-side support. Is anyone planning to work on this ? On Nov 14, 2013, at 2:18 AM, Renato Golin <renato.golin at linaro.org> wrote: > On 1 November 2013 13:40, Hal

My application runs a backgrond process and after running for a while I get this error in my logs: #<Errno::EMFILE: Too many open files Lasty, the ONLY code I have that does anything with files is: File.open(image_path, "wb") do |file| file.puts file_content end Any idea what this means? -- Posted via http://www.ruby-forum.com/.