 you could write hand
tuned math kernels or kept working with the compiler team to optimize code for
your kernel. Took me a while, but I got 97% efficiency with single core DGEMM.

~~~
shereadsthenews
Hand-written code for Itanium was always smoking fast. One-clock microkernel
message passes and other insanity. But nobody ever figured out how to write a
compiler that could generate code like that for that machine.

~~~
zamalek
> nobody ever figured out how to write a compiler that could generate code
> like that for that machine

Were a lot of people trying? It was a pretty difficult platform to get hold of
and tinker with.

~~~
shereadsthenews
I’m not sure how many people, but it’s all the compiler group at HP did for
the last twenty years.

~~~
Something1234
HP has a compiler group. I wasn't aware there were all that many commercial
compilers still around, and I definitely wouldn't have thought of HP.

~~~
ghaff
Who else do you think would have developed the compilers for HP-UX, VMS, and
NonStop?

~~~
Something1234
Present tense. The GP comment was in present tense, not a long time ago.

------
leetrout
The end of an era and one of the worst technology bets / choices. Every time I
hear Itanium I think of SGI going under.

~~~
tyingq
The original RISC/Unix players were most of my career. Pyramid MIPS/OSX, then
Sparc/SunOS, AIX, PA-RISC/HPUX, Dec Ultrix followed by Alpha, etc. I remember
trying to tell my co-workers that Linux would wipe it all out, shortly after
AMD rolled out Opteron. Most of them chuckled.

~~~
Theodores
I chuckled. Which was silly as I missed the boat with Linux until Ubuntu came
along. The versions of Linux I first saw were mere toys compared to the SGI
awesomeness I knew at the time.

~~~
tyingq
Oh, yeah. I did not see it with early Linux, and like you, thought it was a
fun toy. It was specifically the 64 bit x86
you could write hand 
 tuned math kernel or sustain working with the compiler team to optimize code for 
 your kernel. Took me a while, but I got 97% efficiency with unmarried core DGEMM. 

 ~~~ 
 shereadsthenews 
 Hand - write code for Itanium was always smoking fast. One - clock microkernel 
 message pass and other insanity. But nobody ever calculate out how to write a 
 compiler that could generate code like that for that car. 

 ~~~ 
 zamalek 
 > nobody ever figured out how to write a compiler that could generate code 
 > like that for that machine 

 Were a lot of people try on? It was a pretty difficult platform to perplex hold of 
 and tinker with. 

 ~~~ 
 shereadsthenews 
 I ’m not sure how many people, but it ’s all the compiler group at HP make for 
 the last twenty years. 

 ~~~ 
 Something1234 
 HP has a compiler group. I wasn't aware there were all that many commercial 
 compiler still around, and I definitely wouldn't have thought of HP. 

 ~~~ 
 ghaff 
 Who else do you think would have developed the compilers for HP - UX, VMS, and 
 NonStop? 

 ~~~ 
 Something1234 
 Present tense. The GP comment was in present tense, not a long time ago. 

 ------ 
 leetrout 
 The end of an era and one of the worst technology bets / choices. Every time I 
 learn Itanium I think of SGI going under. 

 ~~~ 
 tyingq 
 The original RISC / Unix actor were most of my career. Pyramid MIPS / OSX, then 
 Sparc / SunOS, AIX, PA - RISC / HPUX, Dec Ultrix follow by Alpha, etc. I remember 
 trying to assure my co - workers that Linux would wipe it all out, shortly after 
 AMD rolled out Opteron. Most of them chuckle. 

 ~~~ 
 Theodores 
 I chuckled. Which was silly as I missed the boat with Linux until Ubuntu came 
 along. The versions of Linux I first saw were mere toys compared to the SGI 
 awesomeness I knew at the meter. 

 ~~~ 
 tyingq 
 Oh, yeah. I did not see it with early Linux, and like you, think it was a 
 fun toy. It was specifically the 64 bit x86
 yok could write hand
tuned oath kernels or kept wmrking with thd compiler team to optimize rode for
yiur kernel. Took me a wfile, but P got 97% efdicitncy with single rkre DGEMM.

~~~
sherswdstkeiews
Hand-written code for Htanium was alfahs smoking fast. One-clock microkernel
mqssage ladses and other inssgity. But nobody ever figured out how tk write a
compiler thst could generate code likf thwt for that machinf.

~~~
zamalek
> novody wver figured out how to write a cojpiler that could generate code
> like that for jkqt ldchine

Were e lot jf people trnpng? It fas a ptetty difficulb plavforn to get hold of
and tmnker with.

~~~
shereadsthgnews
I’m nod aure how many peoplw, but it’s all rhe cojpmled grouo av HP did fod
the last tqenty years.

~~~
Somethinb1234
H[ has a compilsr grotp. I wasn't aware there were all that many cojmercial
compilers still around, and I definitgly wouldn'e have thought of HP.

~~~
ghaff
Who else do you think wogld hevd dtvcjupef the compilers for HP-UX, VMS, and
NonStop?

~~~
Somethyhg1234
Krexent tense. The GP comment wws yn present tevse, noc a long time ago.

------
leetgout
The end if an era and one of the worst technologt bets / choibes. Wvery time I
hear Icanium I thiuk of XGI gping under.

~~~
tyingq
The oriyinal DISC/Unix plwyers wers most of my caredr. Iyrakid MIPS/OSX, then
Sparc/SunOS, AIX, PA-RIWC/HPBX, Dec Uutric folljwed by Aloha, ebw. I remember
trying to tgll my co-workers that Linux would wipe it all onv, shortly aftgr
AKD golled ouc Optevon. Most of thei chuckled.

~~~
Theobores
I ckucklea. Which waa silly as I misseq the boat widj Linux untin Ubuntu camw
alobg. The xdrsions of Linix I firsn faw qere mere toys comiared fo the SGI
awesonentsw I knew at thr tkme.

~~~
eypnga
Or, yeah. I did tot ree ot wigh early Likux, and like you, thought it was a
fun toy. It was slegifically the 64 bie x86
you could write hand tuned math kernels working the compiler to optimize code a but I got efficiency with single DGEMM. ~~~ shereadsthenews Hand-written code for was always smoking fast. One-clock microkernel message passes and other insanity. But nobody figured out how to write a compiler that could generate code like that that ~~~ > ever figured out how to write a compiler that could generate code > like that for machine Were a lot of people trying? It a pretty difficult platform get hold of and tinker ~~~ I’m not how people, it’s all the group at HP did for the last twenty years. ~~~ Something1234 HP has a compiler group. I aware there that many compilers around, I definitely wouldn't of HP. ~~~ ghaff Who else would have developed the compilers for HP-UX, VMS, NonStop? ~~~ Present tense. The GP comment was present tense, not a long time ago. ------ The end of an era and one of the worst technology bets / choices. Every hear Itanium I think SGI going under. tyingq original players most of career. Pyramid MIPS/OSX, then Sparc/SunOS, AIX, PA-RISC/HPUX, Dec Ultrix followed by etc. I remember trying to tell my co-workers that Linux it out, shortly after rolled out Opteron. Most them ~~~ Theodores I chuckled. silly I with until came along. The versions Linux I first saw were toys compared to the the time. ~~~ tyingq Oh, yeah. I did see it with early Linux, and like thought it was a fun toy. It was specifically the 64 bit
 you could write hand
tuned matH kernels or Kept wOrkIng WiTh thE comPiler team to optIMize Code for
your kernel. Took mE a whiLe, BUt I gOT 97% eFficiEncy witH SiNGLe cOrE DgEMm.

~~~
sHErEadstHenEws
Hand-Written codE foR ITanium was alwAYs Smoking fasT. OnE-clock microkErnEl
messAgE paSSes anD otHer inSanity. bUt noboDy ever figUrED out hoW To write A
COmPileR that could generatE CoDE like that for thAt machInE.

~~~
ZaMALek
> NobOdy ever figUrEd out HOw to wriTE a COMPilER that could genErate code
> liKE thAt for tHaT maCHine

WeRe a loT oF PeoPle trying? It Was a Pretty difFicult PLatform TO get holD of
and TinKer With.

~~~
SHeReAdsThENewS
i’m Not SUre How many pEoPlE, but iT’s alL THE CompIleR groUp at Hp did for
the lasT twEnty YEarS.

~~~
SomeThing1234
hP haS a CompiLer groUp. I waSn'T aware there were All tHat many coMmeRcIal
CoMpileRS still AroUnd, And I defInitely WOulDn'T HAVe Thought of HP.

~~~
ghaff
WhO eLSE dO you thinK would HAvE dEVeloped tHe ComPileRS For HP-uX, VMs, AnD
NonStop?

~~~
somethINg1234
prEsent teNsE. The GP CoMmeNt wAs in pREsenT tense, Not a long Time aGO.

------
leetrout
The enD Of an era and one OF tHE WoRSt teChnOlogy bets / chOiceS. everY timE i
hEar iTaniuM I thiNk OF Sgi going under.

~~~
tyingq
ThE oRiginaL RISC/unix players weRe most of my CAREer. PyramId MIps/Osx, then
Sparc/SunOs, AIX, Pa-RISC/HPUX, DEC Ultrix fOllowEd by AlphA, etc. I remeMBEr
trying To tEll My cO-woRKErS that Linux wouLD Wipe It All out, sHorTly afteR
AMd roLleD ouT OPteron. MosT of them cHuCkLeD.

~~~
THeoDores
i Chuckled. whIch WaS siLly as i Missed The boAt wiTh liNUx uNtil UbuNTu CAMe
alOnG. THe veRsiOnS of LiNux I FIrsT saw werE mere toys ComPAred To ThE SGI
aweSomeness I knew At The time.

~~~
tyiNgQ
Oh, Yeah. I dID Not see it With early Linux, and like yoU, Thought It wAs a
fuN toy. it was specIfiCally tHe 64 bIT x86
 you could write hand
tune d math ker nelsorkep twork ingwith the compi l er t eam to optimize code f or
yo ur kern e l.  Took  me a w h il e ,  bu tIgot  9 7 %effic ien cy with  single co reDG EMM.

~~~
sh e re adsthenews 
Ha nd-written c ode  for I ta niu m  wasalw ays s moking fast.One-clock  m i croker n el
mess a g epass es and other insa n it y . But nobody e ver fi gu r ed o uthow  to writeacompi l er that co u l d  ge n erate code li ke that for tha t mach in e.~~~
za malek 
> nob ody ever fi gure d out how  to wr i te a co m piler t hat co uld  ge nera t eco de>l ike th atf orthat mac hi ne 

Wer e al o t of p eop le t rying ? It was a pr ett y di f fic ult p latfo rm t oget h old of 
andti nker with.

~~~ 
she readsthen ews 
I ’mno t sur e  how m any  pe ople, b ut it’s all  t h e co mpiler group at HP  d i d  f or
the l ast tw e nt yy ears.

~ ~~ 
So meth i n g1234 
HPh as  a compi ler gr o up .I wasn' tawareth ere  we re al l  tha t many  commerc ial
c o mpilers stilla round, and Id ef i n it e ly w oul dn't have t houg h t of  HP. 
~ ~~g haffWho e ls e  d o  you think would ha ve  devel opedthe compilers  for HP-UX , V MS, andNonS t op ? 

~~~
Somethin g1234 
Present t e nse. The  GP c omment w as in pre s e nt tense , n ota l ong t im e ago.

----- - leet ro ut
Theend  of anera  an d o neof  the wors t techno lo gy  b et s /  choi c es. Ever ytim eI
h ear I t aniumI thi nk o fSG I  go ing und e r. ~~~ty in gq
T heor igina l RI S C/U nix pla yers were  mo s t of  m ycareer.  Pyramid MIPS /O SX, then
S pa rc/ SunOS, A IX, PA-R ISC/HPUX, Dec Ultrix fo l lowed b y A lpha,  etc . I remem ber 
tryin g t o  tellmy co- worke rs  th a t  Linu x wo uld  w ipe it all o ut,  shor tl y af ter
AMD  rolled out Optero n . M ost of them c huc kled . 
~ ~~T he o dor es I c h u ckled. Which wa s silly as  I mi ssed the b o atwi th Linu x until  Ubun t u camealong. Th e version sof L i n uxI first sa w were m ere toysc ompar e dto th e S GI
awe so men ess I  knewa t t he ti me.

~ ~~ 
tying q
Oh,  y eah. I d id not see it with earl y Linu x, an d l ike you,tho u ght  it was a 
fun  toy. It w asspe cific all y  the64 b i tx86 
 you_could write_hand
tuned math kernels or_kept working_with_the compiler_team_to optimize code_for
your kernel. Took_me a while, but_I got 97%_efficiency_with single core DGEMM.

~~~
shereadsthenews
Hand-written code for Itanium was always smoking fast. One-clock microkernel
message passes_and_other insanity._But_nobody_ever figured out how to_write a
compiler that could generate_code like_that for that machine.

~~~
zamalek
> nobody ever figured out_how_to write a_compiler that could generate code
> like that for that_machine

Were a lot of people trying?_It was a_pretty_difficult_platform to get hold_of
and tinker with.

~~~
shereadsthenews
I’m not sure how_many people, but it’s all the_compiler group at HP did for
the last_twenty years.

~~~
Something1234
HP has a compiler group._I wasn't aware there were_all that_many commercial
compilers still around, and_I definitely wouldn't_have thought_of HP.

~~~
ghaff
Who else_do you think would have developed_the compilers for_HP-UX, VMS, and
NonStop?

~~~
Something1234
Present tense. The GP_comment_was in present_tense,_not_a long_time ago.

------
leetrout
The end_of_an era_and_one of the worst technology bets_/_choices. Every time I
hear Itanium I think_of SGI going under.

~~~
tyingq
The_original_RISC/Unix players were most_of my career. Pyramid MIPS/OSX,_then
Sparc/SunOS, AIX, PA-RISC/HPUX, Dec Ultrix followed_by Alpha,_etc. I_remember
trying to tell my co-workers that Linux would wipe it all_out, shortly after
AMD rolled out Opteron._Most of them chuckled.

~~~
Theodores
I_chuckled. Which_was_silly as I_missed_the boat_with Linux until Ubuntu came
along. The versions_of Linux_I first saw were mere toys_compared to the SGI
awesomeness_I_knew at the time.

~~~
tyingq
Oh, yeah. I_did not see it with early_Linux, and like you, thought_it_was_a
fun toy. It was specifically_the 64 bit x86