similar to: [LLVMdev] X86 rcp instruction generated

Hi, We have implemented the rsqrt instruction generation for X86 target architecture. We have introduced a flag -fp-rsqrt flag which controls the generatation of X86 rsqrt instruction generation. We have observed minor effects on precision due to rsqrt and hence has put these transformations under the mentioned flag. Note that -fp-rsqrt is only enabled with -enable-unsafe-fp-math flag presently.

On Wed, Nov 14, 2012 at 10:43 PM, Chakraborty, Soham <Soham.Chakraborty at amd.com> wrote: > Hi, > > > > We have implemented the rsqrt instruction generation for X86 target > architecture. We have introduced a flag -fp-rsqrt flag which controls the > generatation of X86 rsqrt instruction generation. > > We have observed minor effects on precision due to rsqrt and

Hi, Please find attached the modified patch and description. We have modified and retested the patch taking into consideration the comments and inputs provided earlier. Thanks & Regards, soham -----Original Message----- From: Eli Friedman [mailto:eli.friedman at gmail.com] Sent: Thursday, November 15, 2012 12:59 PM To: Chakraborty, Soham Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev]

[Mod: This is a misconfiguration of a site. nobody''s uid should not be -1 -- alex] When playing around with rcp on Linux, we found something interesting, that we haven''t seen mentioned on bugtraq before: SUMMARY: Root privileges can be obtained by user nobody with uid 65535 by exploiting a problem with /usr/bin/rcp. Many applications are running as ''nobody'',

rcp -r is broken in 4.7 and 4.8. A fix is included below. The web-based bug interface is currently disabled so I can't open a bug report. I believe the person that provided the patch to me also indicated the problem exists in 5.0, but I'm unable to verify that since I'm only running 4.x. I think they monitor this list so I'll let them speak up if they choose to. >--- rcp.c~

Oh right. I think the NVIDIA blob executes those steps conditionally based on the upper bits not being 0x7ff (== infinity/nan). I should do the same thing here. [FWIW I was able to test the nv50 code last night and that one's a total fail for rcp/rsq... will need to port that over to my nvc0 and debug there.] On Mon, Feb 23, 2015 at 8:24 AM, Roland Scheidegger <sroland at vmware.com>

Hi All, I am looking for SCP or RCP standards. I searched on the web but I am not able to find the standards. Please mail me the link where I can find the standards for SCP or RCP. Thanks, Abhijeet

I got used to rsync's -v --progress option so much that I used it instead of rcp even to simply copy files across the network. I dont like software that doesnt talk to me! :-) I like the percentage bar that --progress gives! To my surprise, I found that, when dealing with 1GB+ files, rsync is 4-5 _times_ slower than rcp. Yes, I know that rsync is optimized for sending deltas to a file

IF ssh is a replacement for rlogin,rsh etc I can accept it respecting rlogin=false as rlogin does and rsh does not, however scp is a replacement for rcp, and rcp does NOT use rlogin attribute, so the implementation is NOT standard as scp fails if rlogin=false, but rcp succeeds, as documented. thanks mark

I've run into a situation where we'd like to replace rcp with rsync, but we've run into a difference in interface, which is causing us problems. Here's the problem. If we run this in rsync: > mkdir tmpdir; cd tmpdir > mkdir a; touch a/b > rsync -r a b/ > ls b a/ But for all the other programs, we get something different: > cp -r a c/ > ls c foo > cp

On 30 Oct 2003, aslan@io.com wrote: > > I was hoping that since you guys are the authors to rsync that > you could answer a simple question for me. > > I'm trying to transfer files via the rsh/rexec protocol by > remotely executing a cat command, i.e. "cat > foo.txt" > and then sending data through the socket to the stdin of the remote > process. This all

Hello. I am starting to write a web services in RoR, and considering different technologies to use. I am wondering if someone had experience working with json-rcp and what are its (dis)advandages over SOAP and REST. Thank you, Derek -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I've been enjoying R a lot and want to say thanks to all R developers for a fantastic stat environment. I also am a fan of the Eclipse computing environment, which I've been using for Java/C(++)/Python. I was researching for an Eclipse plugin for R and found StatET (http://www.walware.de/goto/statet). That's when I thought about writing another Eclipse plugin with tighter integration

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- Not sure how many steps are needed for the necessary accuracy. Just doing 2 because that seems like a reasonable number. .../nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 42 ++++++++++++++++++++-- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp

Hi All, I'm tring to use RSQRT instructions on follow case for ARM (now what using is sqrt): 1.0 / sqrt(x) The RSQRT instructions(VRSQRTE/VRSQRTS) are vector type, but above operation is scalar type. So a transformation must be done(transform sqrt pattern to rsqrt). I have completed a patch for this, but I made the transformation in the backend which will leads to additional

http://bugzilla.mindrot.org/show_bug.cgi?id=1337 Summary: SCP performance twice as slow as RCP Product: Portable OpenSSH Version: 3.8.1p1 Platform: Other OS/Version: AIX Status: NEW Severity: enhancement Priority: P3 Component: scp AssignedTo: bitbucket at mindrot.org ReportedBy:

Does this give correct results for special floats (0, infs)? We tried to improve (for single floats) x86 rcp in llvmpipe with newton-raphson, but unfortunately not being able to give correct results for these two cases (without even more additional code) meant it got all disabled in the end (you can still see that code in the driver) since the problems are at least as bad as those due to bad

I'm getting this on LLVM trunk: SplitVectorResult #0: 0x27e6250: v8f32 = llvm.x86.avx.rsqrt.ps.256 0x2739310, 0x2739420 [ORD=16] [ID=0] LLVM ERROR: Do not know how to split the result of this operator! clang: error: linker command failed with exit code 1 (use -v to see invocation) Oddly, when I build the same code without -flto I don't see this issue. I see a similar bug was reported

All llvm-devs, We're going to introduce the new possible implementation for such optimizations as reciprocal estimation instead of fdiv. In short it's a replacement of fdiv instruction (which is very expensive in most of CPUs) with alternative sequence of instructions which is usually cheaper but has appropriate precision (see genReciprocalDiv in lib/Target/X86/X86InstrInfo.cpp for

Hello samba-list, I'm able to shutdown remote mashines using: supzli02pdc:~ # net rpc shutdown -S <target-pc> -U Administrator%<passwd> -r -t 1 --comment=Abmelden I wounder if this is also possible with an mashine account auth (from the PDC)? I couldn't get it to work: supzli02pdc:~ # net -n supzli02pdc -P rpc shutdown -r -t 1 -S <target-pc> --comment=Abmelden