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2006 Sep 16
1
[LLVMdev] cpp program linking error
...cpp code like this: #include <iostream> using std::cout; using std::endl; int main() { cout << "Hello" << endl; } $llvm-g++ hello.cc -o hello /developer/zsth/llvm-gcc/install/bin/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../.. /libstdc++.so:undefined reference to 'A_::LTHUNK8' /developer/zsth/llvm-gcc/install/bin/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../.. /libstdc++.so:undefined reference to 'A_::LTHUNK11' /developer/zsth/llvm-gcc/install/bin/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../.. /libstdc++.so:undefined reference to 'A_::LTHUNK0' /dev...
2020 Sep 14
0
[PATCH 07/17] 53c700: improve non-coherent DMA handling
On Mon, 2020-09-14 at 16:44 +0200, Christoph Hellwig wrote: > @@ -429,7 +430,7 @@ struct NCR_700_Host_Parameters { > for(i=0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); > i++) { \ > __u32 val = > bS_to_cpu((script)[A_##symbol##_used[i]]) + da; \ > (script)[A_##symbol##_used[i]] = bS_to_host(val); \ > - dma_cache_sync((dev), > &(script)[A_##symbol##_used[i]], 4, DMA_TO_DEVICE); \ > + dma_sync_to_dev...
2020 Sep 14
2
[PATCH 07/17] 53c700: improve non-coherent DMA handling
Switch the 53c700 driver to only use non-coherent descriptor memory if it really has to because dma_alloc_coherent fails. This doesn't matter for any of the platforms it runs on currently, but that will change soon. To help with this two new helpers to transfer ownership to and from the device are added that abstract the syncing of the non-coherent memory. The two current bidirectional cases...
2020 Sep 01
2
[PATCH 07/28] 53c700: improve non-coherent DMA handling
On Wed, 2020-08-19 at 08:55 +0200, Christoph Hellwig wrote: > Switch the 53c700 driver to only use non-coherent descriptor memory > if it really has to because dma_alloc_coherent fails. This doesn't > matter for any of the platforms it runs on currently, but that will > change soon. > > To help with this two new helpers to transfer ownership to and from > the device are added that abstract the syncing of the non-coherent > memory. The t...
2000 Apr 04
0
stochastic process transition probabilities estimation
...sorry in advance if my question is silly. My problem is this: I have a (sample of a) discrete time stochastic process {X_t} and I want to estimate Pr{ X_t | X_{t-l_1}, X_{t-l_2}, ..., X_{t-l_k} } where l_1, l_2, ..., l_k are some fixed time lags. It will be enough for me to compute #{ X_t=a_t, X_{t-l_1}=a_{t-l_1}, X_{t-l_2}=a_{t-l_2}, ..., X_{t-l_k}=a_{t-l_k} } ---------------------------------------------------------------------------------- #{ X_{t-l_1}=a_{t-l_1}, X_{t-l_2}=a_{t-l_2}, ..., X_{t-l_k}=a_{t-l_k} } for any given sequence of a_t, a_{t-l_1}, a_{t-l_2}, ..., a_{...
2004 Nov 02
2
Matrix decomposition: orthogonal complement
Hello, How I can compute in R the orthogonal complement of one matrix? If A (n x m ) matrix of full column rank (n>m), its orthogonal complement is denoted by A_ . A_ is n X (n-m) matrix of full column rank and such that A'A_=0. I need to compute A_. How I can compute A_ in R? Best Regards, /Florin -- Florin G. Maican Ph.D. candidate, Department of Economics School of Economics and Commercial Law Gothenburg University, Sweden E-mail: Florin.Ma...
2020 Sep 15
0
[PATCH 07/18] 53c700: improve non-coherent DMA handling
Switch the 53c700 driver to only use non-coherent descriptor memory if it really has to because dma_alloc_coherent fails. This doesn't matter for any of the platforms it runs on currently, but that will change soon. To help with this two new helpers to transfer ownership to and from the device are added that abstract the syncing of the non-coherent memory. The two current bidirectional cases...
2004 Dec 12
2
Help : generating correlation matrix with a particular structure
Hi, I would like to generate a correlation matrix with a particular structure. For example, a 3n x 3n matrix : A_(nxn) aI_(nxn) bI_(nxn) aI_(nxn) A_(nxn) cI_(nxn) aI_(nxn) cI_(nxn) A_(nxn) where - A_(nxn) is a *specified* symmetric, positive definite nxn matrix. - I_(nxn) is an identity matrix of order n - a, b, c are (any) real numbers Many attempts have been unsuccessful because a resulting matrix...
2020 Aug 19
0
[PATCH 07/28] 53c700: improve non-coherent DMA handling
Switch the 53c700 driver to only use non-coherent descriptor memory if it really has to because dma_alloc_coherent fails. This doesn't matter for any of the platforms it runs on currently, but that will change soon. To help with this two new helpers to transfer ownership to and from the device are added that abstract the syncing of the non-coherent memory. The two current bidirectional cases...
2018 Jan 15
2
Using the host name of the volume, its related commands can become very slow
...106143] [glusterd-pmap.c:231:pmap_registry_bind] 0-pmap: adding brick /data/gluster/dfd7e810-d4f8-4b4b-b5d1-53e5652f1a8f/OTZ on port 49210 [2018-02-03 13:55:09.207655] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry_bind] 0-pmap: adding brick /data/gluster/c26580f1-e879-4225-8b3b-e3a3738130a0/A_s on port 49219 [2018-02-03 13:55:09.209824] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry_bind] 0-pmap: adding brick /data/gluster/d60a681a-af2a-40ae-9732-9902bd2be614/v_v on port 49172 [2018-02-03 13:55:09.212030] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry_bind] 0-pmap: adding bri...
2013 Feb 18
3
Generating QFs from same sample
...e n represents independent row-vectors and p correlated col vectors. Let the row representation be X = (X’_1, . . ., X’_n)’. I generate the differences of these vectors as D_{ab} = X_a – X_b, with different indices a and b, and similarly D_{cd} = X_c – X_d, and make a quadratic form D’_{ab}D_{cd} = A_{abcd}, say. Please note that, here a is unequal b, c is unequal d, a is unequal c, b is unequal d. By slightly shuffling the same set of vectors, I generate two other similar quadratic forms, say A_{acbd} and A_{adcb}, where the indices are again as unequal as stated above. In the R-code (a pa...
2018 Jan 16
0
Using the host name of the volume, its related commands can become very slow
...map.c:231:pmap_registry_bind] > 0-pmap: adding brick /data/gluster/dfd7e810-d4f8-4b4b-b5d1-53e5652f1a8f/OTZ > on port 49210 > [2018-02-03 13:55:09.207655] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry_bind] > 0-pmap: adding brick /data/gluster/c26580f1-e879-4225-8b3b-e3a3738130a0/A_s > on port 49219 > [2018-02-03 13:55:09.209824] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry_bind] > 0-pmap: adding brick /data/gluster/d60a681a-af2a-40ae-9732-9902bd2be614/v_v > on port 49172 > [2018-02-03 13:55:09.212030] I [MSGID: 106143] [glusterd-pmap.c:231:pmap_registry...
2014 Feb 21
6
[LLVMdev] make check issue with llvm-cov
...ov /home/rkotler/caviumllvm/build/Debug+Asserts/bin/llvm-cov test.c -a | diff -u test_no_options.output - diff -aub test_-a.cpp.gcov test.cpp.gcov diff -aub test_-a.h.gcov test.h.gcov /home/rkotler/caviumllvm/build/Debug+Asserts/bin/llvm-cov test.c -a -b | diff -u test_-b.output - diff -aub test_-a_-b.cpp.gcov test.cpp.gcov diff -aub test_-a_-b.h.gcov test.h.gcov On a native mips linux machine, we are failing a make check test which seems like it is supposed to already xfail. For one, the file test.c does not even exist (it is called test.cpp) And in the test file there is a line: XFAIL: po...
2012 Feb 14
3
Wildcard for indexing?
Hi, I'd like to know if it is possible to use wildcards * for indexing... E.g. I have a vector of strings. Now I'd like to select all elements which start with A_*? I'd also need to combine that with logical operators: "Select all elements of a vector that start with A (A*) OR that start with B (B*)" Probably that is quite easy. I looked into grep() which I think might perform such tasks, but probably there is a more straigth forward solution...
2010 Sep 24
1
Solving equations involving gamma functions
Hi, I want to find a value of n1. I used the following code but I am getting the error - Error in as.vector(x, mode) : cannot coerce type 'closure' to vector of type 'any' n=10 a_g<-(1/(n*(n-1)))*((pi/3)*(n+1)+(2*sqrt(3)*(n-2))-4*n+6) a_s<-function(n1) { t1=(n1-1)/2; (t1*(gamma(t1)/gamma(n1/2))^2)/2-1-a_g } xm<-solve(a_s) Can anyone help me out. Thanks in advance for your help. Shant [[alternative HTML version deleted]]
2005 May 02
14
eigenvalues of a circulant matrix
Hi, It is my understanding that the eigenvectors of a circulant matrix are given as follows: 1,omega,omega^2,....,omega^{p-1} where the matrix has dimension given by p x p and omega is one of p complex roots of unity. (See Bellman for an excellent discussion on this). The matrix created by the attached row and obtained using the following commands indicates no imaginary parts for the
2010 Apr 10
1
minimization function
Hi all, I am trying to minimize the quardratic form w'Aw, with certain constraints. In particular, (1) A=(a_{ij}) is n by n matrix and it is symmetric positive definite, a_{ii}=1 for all i; and 0<a_{ij}<1 for i not equal j. (2) w'1=n; (3) w_{i}>=0 Analytically, for n=2, it is easy to come up with a result. For larger n, it seems difficult to obtain the result. Does a...
2007 Sep 12
1
Verifying understanding of backup-dir vs compare-dest
Hello, Say one starts with creating an archive rsync work -> archive and periodically (below, i = 1 to N) does rsync --backup-dir=a_<i> work -> archive and rsync --compare-dest=archive work -> b_<i> Then suppose one wants to recover the work directory as it was at time k. Using the b_<i> directories, one would merely merge b_k with the archive directory. But using the a_<i> dir...
2001 May 19
2
calculations on diagonals of a matrix
Given an nxm matrix A I want to compute the nxm matrix B whose ij-th element is the sum of the elements of A lying on the diagonal that ends with element ij, i.e., b_ij = a_ij + a_(i-1)(j-1) + a_(i-2)(j-2) + ... In APL (which I no longer use), I would use the 'rotate' operator to derive an array whose columns are diagonals of the given array and then cumulate down columns. Is there a similar operator in R, or is there another/better way? -.-.-.-.-.-.-.-.-.-...
2012 May 23
1
numerical integration
Greetings, Sorry, the last message was sent by mistake! Here it is again: I encounter a strange problem computing some numerical integrals on [0,oo). Define $$ M_j(x)=exp(-jax) $$ where $a=0.08$. We want to compute the $L^2([0,\infty))$-inner products $$ A_{ij}:=(M_i,M_j)=\int_0^\infty M_i(x)M_j(x)dx $$ Analytically we have $$ A_{ij}=1/(a(i+j)). $$ In the code below we compute the matrix $A_{i,j}$, $1\leq i,j\leq 5$, numerically and check against the known analytic values. When I run this code most components of A are correct, but some are zero. I ge...