search for: acessses

Hi team, I am beginning on R and I try to install Rmpi library and I have problems, I have installed LAM-MPI on Rocks; [rcnavarro at hpc-cip ~]$ laminfo LAM/MPI: 7.1.1 Prefix: /opt/lam/gnu Architecture: x86_64-unknown-linux-gnu Configured by: root Configured on: Wed Oct 19 18:12:25 EDT 2005 Configure host: rocks-156.sdsc.edu Memory

So you're saying a compiler can optimize: > > - statement with memory access > - read memory barrier > - statement with memory access > > To drop the second statement? I would worry about your definition of > memory barrier then.. > This is tricky, but I think you're mixing up the general case with the actual code you have. In general, you are pointing to this

Hi, xencomm is the ppc infrastructure to do hypercalls with guest physical addresses instead of virtual address. Because ia64 should also use physicall address, I think it''s better to re-use the ppc code and to put into common code. I''d propose to submit this patch is every part is OK (ie no NAK). This patch creates include/xen/xencomm_access.h which is to be included by

Currently PVHVM Linux guests after ddacf5ef684a "xen/pv-on-hvm kexec: add xs_reset_watches to shutdown watches from old kernel" hang when run against oxenstored because it does not handle the unknown XS_RESET_WATCHES operation and does not reply. The symptom of this issue is a hang during boot at this point: cpu 1 spinlock event irq 70 CPU 1 irqstacks, hard=dec94000

pthread_mutex_lock had *better* imply a compiler barrier across which code can't be moved... which is very different from the printf case where it might have done it due to register pressure or who knows what. If code like x = *a; pthread_mutex_lock or unlock or __memory_barrier() y = *a; doesn't cause a to get loaded twice, then the compiler's in serious trouble. Basically

Hi all, I’m working on my thesis in which I need to count the number of memory access (i.e. load and stores) of each variable of program. how can I do that? these are some approaches came to my mind : I need to know during the execution of the program how many load and store instructions are executed on a specific variable, hence simply counting static load and store instructions doesn’t help.

On Wed, Feb 25, 2015 at 9:07 AM, Maarten Lankhorst < maarten.lankhorst at ubuntu.com> wrote: > Op 25-02-15 om 16:04 schreef Patrick Baggett: > > On Wed, Feb 25, 2015 at 8:59 AM, Maarten Lankhorst < > > maarten.lankhorst at ubuntu.com> wrote: > > > >> Op 25-02-15 om 15:11 schreef Emil Velikov: > >>> On 24 February 2015 at 09:01, Maarten

You''re right scout the last line. Out looks like xapi is waiting on tapdisk to plug a key into xenstore. Perhaps a udev rule problem? Perhaps someone who knows more about tapdisk than I well be able to diagnose this tomorrow. Mike Sent from Samsung tablet Sébastien RICCIO <sr@swisscenter.com> wrote: Of course, here it is attached. Last line seems interesting. However tapdisk2