Donna, a new UCI chess engine by Michael Dvorkin

[Norbert Raimund Leisner]

Thomas Kappler created an executable file for Windows 64-bit too on the following website
https://onedrive.live.com/?cid=53e547e3 ... DZcCK96VmU

[Norbert Raimund Leisner]

AIBiODZcCK96VmU must be added to the given URL for download Donna 1.0 MK x64

Norbert

[Graham Banks]

Hi!
Here it is a 64 bit version:

http://www.andscacs.com/donna/donna1.rar

I had to copy the source in
src\donna (from $GOROOT)
to be able to compile it with

go build -gcflags -B ./donna.go

Also I changed the first import of donna.go:
import (
`donna`

When I run Donna under ChessGUI, it installs okay, but on its first move just keeps thinking (and displaying the output) until it loses on time.
Any suggestions?

[Graham Banks]

Hi!
Here it is a 64 bit version:

http://www.andscacs.com/donna/donna1.rar

I had to copy the source in
src\donna (from $GOROOT)
to be able to compile it with

go build -gcflags -B ./donna.go

Also I changed the first import of donna.go:
import (
`donna`

When I run Donna under ChessGUI, it installs okay, but on its first move just keeps thinking (and displaying the output) until it loses on time.
Any suggestions?

Works okay on a modern computer, but not on a non-popcount one.
Guess I need to ask Daniel nicely for a non-popcount 64-bit compile.

[cdani]

Works okay on a modern computer, but not on a non-popcount one.
Guess I need to ask Daniel nicely for a non-popcount 64-bit compile.

I'm sorry that I find no documentation in internet to do this. May be someone with knowledge of Go can do it.

[Graham Banks]

Works okay on a modern computer, but not on a non-popcount one.
Guess I need to ask Daniel nicely for a non-popcount 64-bit compile.

I'm sorry that I find no documentation in internet to do this. May be someone with knowledge of Go can do it.

Thanks for replying Daniel.

Is anybody else able to do this?

[Graham Banks]

Works okay on a modern computer, but not on a non-popcount one.
Guess I need to ask Daniel nicely for a non-popcount 64-bit compile.

I'm sorry that I find no documentation in internet to do this. May be someone with knowledge of Go can do it.

Thanks for replying Daniel.

Is anybody else able to do this?

Strangely enough, Donna works on my Q8200, but not on my Q6600.

[spambanane]

From Donna's source directory run the build command:

$ go build -gcflags -B ./cmd/donna.go

Best wishes,
Norbert

using the "-B" gc flag (disabeling boundary checking) is a very bad idea.

quoting a go core developer (dave cheney): "It is important to note that -B is an unsupported flag. The goal of Go is a safe language, one where array subscripts are bounds checked when they are not provably safe. Go already elides bounds checks when you use range loops, and future compilers will improve this. It is also important to note that none of the builders test -B so it might even generate incorrect code. In summary, when the compiler improves, -B will go away, so don’t get too attached."

so chances are high that creating an executable with "go build" will solve the problems.

[spambanane]

Hi!
Here it is a 64 bit version:

http://www.andscacs.com/donna/donna1.rar

I had to copy the source in
src\donna (from $GOROOT)
to be able to compile it with

go build -gcflags -B ./donna.go

Also I changed the first import of donna.go:
import (
`donna`

1. set the enviroment variable GOPATH to where you want the go projekt to reside
2. "go get github.com/michaeldv/donna/cmd"
3. you will find an executable file named "cmd" in $GOPATH/bin

[cdani]

Hi!
Here it is a 64 bit version:

http://www.andscacs.com/donna/donna1.rar

I had to copy the source in
src\donna (from $GOROOT)
to be able to compile it with

go build -gcflags -B ./donna.go

Also I changed the first import of donna.go:
import (
`donna`

1. set the enviroment variable GOPATH to where you want the go projekt to reside
2. "go get github.com/michaeldv/donna/cmd"
3. you will find an executable file named "cmd" in $GOPATH/bin

Thanks for the info! Was the first compile I have done in Go. Also the -B flag was proposed by the author of the engine.

Do you know if this changes something about the problem of Graham?