jones_supa writes: Siddhesh Poyarekar from Red Hat has taken a professional look into mathematical functions found in Glibc (the GNU C library). He has been able to provide an 8-times performance improvement to slowest path of pow() function. Other transcendentals got similar improvements since the fixes were mostly in the generic multiple precision code. These improvements already went into glibc-2.18 upstream. Siddhesh believes that a lot of the low hanging fruit has now been picked, but that this is definitely not the end of the road for improvements in the multiple precision performance. There are other more complicated improvements, like the limitation of worst case precision for exp() and log() functions, based on the results of the paper Worst Cases for Correct Rounding of the Elementary Functions in Double Precision (PDF). One needs to prove that those results apply to the Glibc multiple precision bits.

Read more of this story at Slashdot.

jones_supa writes: Siddhesh Poyarekar from Red Hat has taken a professional look into mathematical functions found in Glibc (the GNU C library). He has been able to provide an 8-times performance improvement to slowest path of pow() function. Other transcendentals got similar improvements since the fixes were mostly in the generic multiple precision code. These improvements already went into glibc-2.18 upstream. Siddhesh believes that a lot of the low hanging fruit has now been picked, but that this is definitely not the end of the road for improvements in the multiple precision performance. There are other more complicated improvements, like the limitation of worst case precision for exp() and log() functions, based on the results of the paper Worst Cases for Correct Rounding of the Elementary Functions in Double Precision (PDF). One needs to prove that those results apply to the Glibc multiple precision bits.

Read more of this story at Slashdot.

Increased migrants journeying by sea to Europe from the Middle East and North Africa are facing alarming new dangers.

Det blir inget nytt federalt åtal mot John Hinckley, mannen som försökte mörda Ronald Reagan, efter dåvarande Reaganmedhjälparen James Bradys död. Åklagarna meddelade på fredagen att fallet läggs ned.

Fyra personer fick föras till sjukhus efter en anlagd källarbrand i stadsdelen Kirseberg i Malmö på fredagskvällen. Rökdykare kunde snabbt släcka branden, men en hel del rök spreds i trapphuset.

USA har infört nya ekonomiska sanktioner mot Nordkorea och flera av topparna i landets politiska ledning. Sanktionerna sker som svar på en cyberattack mot filmbolaget Sony Pictures.

2014 var året då världen inte riktigt utvecklades som någon hade tänkt sig, med mer krig, fler flyktingar och osannolika grymheter. Det skedde i en tid då amerikanskt inflytande i världen är på stadig nedgång. En som länge talat om hur USA inte längre styr världspolitiken är Ian Bremmer, professor i statsvetenskap och grundare av Eurasia Group. Han spår att USA:s dominans forsätter att minska under 2015.

Fyra personer fördes till sjukhus efter en källarbrand i stadsdelen Kirseberg i Malmö på fredagskvällen. Branden kunde snabbt släckas, men mycket rök spreds i trapphuset.

Fyra personer fördes till sjukhus efter en källarbrand i stadsdelen Kirseberg i Malmö på fredagskvällen. Branden kunde snabbt släckas, men mycket rök spreds i trapphuset.

wiredmikey writes: The United States imposed financial sanctions Friday on North Korea and several senior government officials in retaliation for a cyber attack on Sony Pictures. President Obama said he ordered the sanctions because of "the provocative, destabilizing, and repressive actions and policies (PDF) of the Government of North Korea, including its destructive, coercive cyber-related actions during November and December 2014." The activities "constitute a continuing threat to the national security, foreign policy, and economy of the United States," he added, in a letter to inform congressional leaders of his executive order. The new measures allow the Treasury Department "to apply sanctions against officials of the Government of North Korea and the Workers' Party of Korea, and persons determined to be owned or controlled by, or acting for or on behalf of" these bodies.

Read more of this story at Slashdot.

wiredmikey writes: The United States imposed financial sanctions Friday on North Korea and several senior government officials in retaliation for a cyber attack on Sony Pictures. President Obama said he ordered the sanctions because of "the provocative, destabilizing, and repressive actions and policies (PDF) of the Government of North Korea, including its destructive, coercive cyber-related actions during November and December 2014." The activities "constitute a continuing threat to the national security, foreign policy, and economy of the United States," he added, in a letter to inform congressional leaders of his executive order. The new measures allow the Treasury Department "to apply sanctions against officials of the Government of North Korea and the Workers' Party of Korea, and persons determined to be owned or controlled by, or acting for or on behalf of" these bodies.

Read more of this story at Slashdot.

POE backend for Mojo::Reactor

Uses crossref to robustly parse bibliometric references.