The GMP project maintains a comprehensive test environment consisting of physical and emulated systems. All test systems use non-routable IP-addresses, and are firewalled behind the main GMP network.

GMP developers with an account at shell.gmplib.org can log in to any of these systems via shell. Only virtualised systems marked as running on servus are directly reachable. Other systems can be reached via the system ashell which acts as a secondary gateway. Log in to ashell from shell using this command:

shell$ ssh ashell

Most systems below are powered off except when tests are being run. The system for power control is a bit crude; the command for switching on [system] is

ashell$ pdu on [system]

and then it will be properly switched off by the test system.

Please see the status page for system power information.

Table colour coding indicates where a machine is located:

on	off	location
		TUG in Stockholm, access via shell.gmplib.org
		Salt, access via TUG's shell.gmplib.org and then as per instructions above
		Sol, access via TUG's shell.gmplib.org and then directly to each system

The colours in the RAM column indicate the presence of ECC; green means the system has ECC memory while red means it lacks ECC. Some level of spurious miscomputation is to be expected from all non-ECC systems.

Real hardware systems

name	arch	cpu type	cpu code name	cores	clk	L1 KiB	L2 KiB	L3 MiB	ram GiB	virt	OS/kern	pwr stat	comment
servus	x86-64	Xeon E5-1650v2	Ivy Bridge-EP	6	3500	6 × 32	6 × 256	12	96	xen	gnu/linux gentoo	on	ssh to port 2202 to virtual system 'shell'
diener	x86-64	Epyc 7402P	Zen2/Rome	24	2800-3350	24 × 32	24 × 512	128	256	xen	gnu/linux gentoo	on
servile	x86-64	Ryzen 3700X	Zen2/Matisse	8	3600-4400	8 × 32	8 × 512	32	96	xen	gnu/linux gentoo	on	ssh via 'shell' through tunnel to virtual system 'ashell'
k8	x86-64	Athlon X2 4800+	K8/Brisbane	2	2500	2 × 64	2 × 512		8	xen	gnu/linux gentoo	pdu
k10	x86-64	Phenom II 1090T	K10/Thuban	6	3200-3600	6 × 64	6 × 512	6	32	xen	gnu/linux gentoo	pdu
bd1	x86-64	FX-4100	Bulldozer/Zambezi	4	3600-3800	4 × 16	2 × 2048	8	32	xen	gnu/linux gentoo	pdu
bd2	x86-64	FX-8350	Piledriver/Vishera	8	4000-4200	8 × 16	4 × 2048	8	32	xen	gnu/linux gentoo	pdu
bd4	x86-64	A12-9800	Excavator/Bristol Ridge	4	3800-4200	4 × 32	2 × 1024		32	xen	gnu/linux gentoo	pdu
suri	x86-64	Ryzen 1500X (1740)	Zen/Summit Ridge	4	3500-3900	4 × 32	4 × 512	16	64	xen	gnu/linux gentoo	pdu
piri	x86-64	Ryzen 2700X	Zen/Pinnacle Ridge	8	3700-4300	8 × 32	8 × 512	16	128	xen	gnu/linux gentoo	pdu
mati	x86-64	Ryzen 3900X	Zen2/Matisse	12	3800-4600	12 × 32	12 × 512	64	128	xen	gnu/linux gentoo	pdu
verm	x86-64	Ryzen 5950X	Zen3/Vermeer	16	3400-4900	16 × 32	16 × 512	64	128	xen	gnu/linux gentoo	pdu
raph	x86-64	Ryzen 7950X	Zen4/Raphael	16	4500-5700	16 × 32	16 × 1024	64	64	xen	gnu/linux gentoo	pdu
gran	x86-64	Ryzen 9950X	Zen5/Granite Ridge	16	4300-5700	16 × 48	16 × 1024	64	96		gnu/linux gentoo
element	x86-64	Xeon	Nocona	2	3400	2 × 16	1024		8		gnu/linux gentoo	timer	unreliable system
cnr	x86-64	Xeon 3085	Conroe	2	3000	2 × 32	4096		8	xen	gnu/linux gentoo	pdu
pnr	x86-64	Xeon E3110	Penryn/Wolfdale	2	3000	2 × 32	6144		8	xen	gnu/linux gentoo	pdu
nhm	x86-64	Xeon X3470	Nehalem/Lynnfield	4	2933-3600	4 × 32	4 × 256	8	32	xen	gnu/linux gentoo	pdu
wsm	x86-64	Xeon E5649	Westmere	6	2533-2933	6 × 32	6 × 256	12	24	xen	gnu/linux gentoo	pdu
sbr	x86-64	Xeon E3-1270	Sandy Bridge	4	3400-3800	4 × 32	4 × 256	8	32	xen	gnu/linux gentoo	pdu
minivy	x86-64	i7-3615QM	Ivy Bridge	4	2300-3300	4 × 32	4 × 256	6	16		macos catalina	pdu	Mac Mini
hwl	x86-64	Xeon E3-1271v3	Haswell	4	3600-4000	4 × 32	4 × 256	8	32	xen	gnu/linux gentoo	pdu
bwl	x86-64	Xeon E3-1285Lv4	Broadwell	4	3400-3800	4 × 32	4 × 256	6+128	32	xen	gnu/linux gentoo	pdu
sky	x86-64	Xeon E3-1270v5	Skylake	4	3600-4000	4 × 32	4 × 256	8	64	xen	gnu/linux gentoo	pdu
roc	x86-64	Core i5 11600K	Rocket Lake	6	3900-4900	6 × 48	6 × 512	12	32	xen	gnu/linux gentoo	pdu
ald	x86-64	Core i5 12600K	Alder Lake	6+4	3700-4900	6 × 48	6 × 512	20	64	xen	gnu/linux gentoo	pdu
bt1	x86-64	E-350	Zacate	2	1600	2 × 32	2 × 512		8	xen	gnu/linux gentoo	pdu
bt2	x86-64	Athlon 5350	Jaguar/Kabini	4	2050	4 × 32	2048		16	xen	gnu/linux gentoo	pdu
gege	x86-64	Atom 330	Diamondville	2	1600	24	512		4		gnu/linux gentoo	pdu
slm	x86-64	Atom C2758	Silvermont/Rangeley	8	2400	8 × 24	4096		32	xen	gnu/linux gentoo	pdu	waiting to die due to Intel C2000 clock bug
glm	x86-64	Atom C3758	Goldmont/Denverton	8	2200	8 × 24	16384		32	xen	gnu/linux gentoo	pdu
plm	x86-64	Celeron J4105	Goldmont Plus/Gemini Lake	4	1500-2400	4 × 24	4096		8	xen	gnu/linux gentoo	pdu
trm	x86-64	Pentium N6005	Tremont/Jasper Lake	4	2000-3300	4 × 32	1536	4	16	xen	gnu/linux gentoo	pdu
tambo	x86-32	Athlon	K7/Barton	1	2083	64	512		2		gnu/linux gentoo	dead	motherboard failure
labrador	x86-32	Pentium3	Coppermine	1	800				1		gnu/linux gentoo	off	will come back under timer control
parks	x86-32	Pentium4-2	Northwood	1	2600	8	512		1		gnu/linux gentoo	off
olympic	ia-64	Itanium 2	Mckinley	2	900	2 × 16	2 × 256	1.5	4		freebsd 10.3	off	HP rx2620
g5	ppc64	PPC-970		2	1800	2 × 32	2 × 512		1.2		macos/darwin	off	Power Mac G5
spigg	ppc32	PPC-7447A		1	1417	32	512		0.5		gnu/linux	off	Mac Mini G4
pi1	armv6	arm1176		1	900				0.5		gnu/linux	on	Raspberry Pi 1
odc1	armv7a	Cortex-A5		4	1500				1		gnu/linux	on	Odroid-C1+
pi2	armv7a	Cortex-A7		4	1000				1		gnu/linux	on	Raspberry Pi 2
beagle	armv7a	Cortex-A8		1	1000				0.5		gnu/linux	on	Beaglebone black
nanot2	armv7a	Cortex-A9		4	1400				1		gnu/linux	on	FriendlyELEC NanoPC-T2
odxu4	armv7a	Cortex-A15/A7		4×2000 + 4×1400					2		gnu/linux	on	Odroid-XU4
tinker	armv7a	Cortex-A17		4	1800				2		gnu/linux	dead	ASUS Tinker Board
pi3	armv8a	Cortex-A53		4	1400				1		gnu/linux	on	Raspberry Pi 3 B+
odc2	armv8a	Cortex-A53		4	1536				2		gnu/linux	on	Odroid-C2
odc4	armv8a	Cortex-A55		4	1908				4		gnu/linux	on	Odroid-C4
pi4	armv8a	Cortex-A72		4	1500				8		gnu/linux	on	Raspberry Pi 4 B
nanom4	armv8a	Cortex-A72/A53		2×1800 + 4×1416					4		gnu/linux	on	FriendlyELEC NanoPi M4
odn2	armv8a	Cortex-A73/A53		4×1800 + 2×1900					4		gnu/linux	on	Odroid-N2
pi5	armv8a	Cortex-A76		4	2400				8		gnu/linux	on	Raspberry Pi 5
m1	armv8a	Apple M1		4×3200 + 4×?					8		gnu/linux	on	Mac Mini

Pictures of GMP development systems:
GMP main development systems
GMP misc development systems
GMP arm development systems

Type-1 virtualised x86 systems

The host names of the virtualised system are made from the physical host name, the abbreviated OS name, the OS flavour (32,64), and 'v' followed by the abbreviated version number. Some installs lack the version part.

There are many irregularities in this table. E.g., freebsd 9.3 is not available on Intel Alder Lake, and freebsd 10 is not available on AMD Piledriver. This is a result of Xen getting worse and worse; all combos used to work but with each Xen release new random CPU x OS combos fail. (We will switch out Xen altogether when we have the time. Unfortunately, KVM's lack of coherent management is a major headache.)

system	name make µarch   virtsys	k8 AMD bris- bane xen	k10 AMD thu- ban xen	bd1 AMD bull- dozer xen	bd2 AMD pile- driver xen	bd4 AMD exca- vator xen	suri AMD zen   xen	piri AMD zen+   xen	mati AMD zen2   xen	verm AMD zen3   kvm	sys AMD zen2   xen	cnr Intel con- roe xen	pnr Intel pen- ryn xen	nhm Intel neha- lem xen	wsm Intel west- mere xen	sbr Intel sandy bridge xen	servus Intel ivy bridge xen	hwl Intel has- well xen	bwl Intel broad- well xen	sky Intel sky- lake xen	roc Intel rocket lake xen	ald Intel alder lake xen	slm Intel silver- mont xen	glm Intel gold- mont xen	plm Intel gold- mont+ xen	trm Intel tre- mont xen	bt1 AMD bob- cat xen	bt2 AMD jag- uar xen	maxim AMD zen+   kvm
freebsd 9.3	32	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 9.3	64	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓
freebsd 10	32	✓	✓				✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 10	64	✓	✓				✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 11	32	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 11	64	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 12	32	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 12	64	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 13	32	✓	✓	✓	✓	✓	✓	✓	✓	✓		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 13	64	✓	✓	✓	✓	✓	✓	✓	✓	✓		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 14	32	✓	✓	✓	✓	✓	✓	✓	✓	✓		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
freebsd 14	64	✓	✓	✓	✓	✓	✓	✓	✓	✓		✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
netbsd 6x	32		1	1	1	1	1	1	1					1	1	1	0-1	1	1	1	1	✓	1	1	1	✓		1
netbsd 6x	64		1	1	1	1	1	1	1					1	1	1	0-1	1	1	1	1	✓	1	1	1	✓		1
netbsd 7x	32	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2			0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
netbsd 7x	64	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2			0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
netbsd 8x	32	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2			0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
netbsd 8x	64	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2			0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
netbsd 9x	32	0-2		0-2	0-2	0-2	0-2	0-2	0-2	✓		0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
netbsd 9x	64	0-2		0-2	0-2	0-2	0-2	0-2	0-2	✓		0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	0-2	✓	0-2	0-2	0-2	✓	0-2	0-2
openbsd	64									7.2												✓				✓
gentoo	32	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
gentoo	64	✓	✓	✓	✓	✓	✓	✓	✓			✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
gentoo hard	32									✓							✓
gentoo hard	64									✓							✓
debian	32	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12			7-12	7-12	7-12	7-12	7-12	7-11	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	8-12
debian	64	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12			7-12	7-12	7-12	7-12	7-12	7-11	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	7-12	8-12
devuan 2	32																✓
devuan 2	64																✓
devuan 3	32
devuan 3	64
fedora 29	64																✓
fedora 30	64																✓
fedora 31	64																✓
fedora 32	64																✓
fedora 33	64																✓
fedora 34	64																✓
ubuntu 1804	64																✓
ubuntu 1810	64																✓
ubuntu 1904	64																✓
ubuntu 1910	64																✓
ubuntu 2004	64																✓
ubuntu 2010	64
ubuntu 2104	64
ubuntu 2204	64
alpine 3	32																11
alpine 3	64									17							11
void linux	32																✓
void linux	64																✓
clear linux	64																✓
macos monterey	64																												mon
macos big sur	64																												big
macos catalina	64																												cat
macos mojave	64																												moj
solaris	32																✓
solaris	64									✓							✓
windows 7/10	64									wine	10

Type-2 virtualised non-x86 systems, "user-mode" emulation

These pseudo-systems run under a Xen guest (currently qemuusr1 which in turn runs under servus), each under a chroot containing a complete GNU/Linux install.

The binaries thereunder are for the respective emulated systems with few exceptions. Currently only /bin/sh and /bin/bash are host binaries. It would be possible to greatly speed things up by providing more host binaries, notably cc1.

host	arch	running on	emulator	cores	slowdown1	slowdown2	notes
armv4tl-gentoo	armv4t	servile	qemu 6.1.0	24	11
armv5tel-gentoo	armv5t	servile	qemu 6.1.0	24	11
armel-deb{v6,v7,v8,v9,v10,v11}	armv7a	servile	qemu 6.1.0	24	11
armhf-deb{v7,v8,v9,v10,v11}	armv7a	servile	qemu 6.1.0	24	11		primarily use system "tinker" via ashell
arm64-gentoo	armv8a	servile	qemu 6.1.0	24	10		primarily use system "odn2" via ashell
arm64-deb{v8,v9,v10,v11}	armv8a	servile	qemu 6.1.0	24	10		primarily use system "odn2" via ashell
ppc32-gentoo	ppc32	servile	qemu 4.2.0	24	14
power{7,8,9}eb-gentoo	power{7,8,9}/be	servile	qemu 4.2.0	24	15
power{8,9}el-gentoo	power{8,9}/le	servile	qemu 4.2.0	24	15
ppc64eb-deb{v7,v8}	ppc64/be	servile	qemu 6.1.0	24	10
ppc64el-deb{v8,v9,v10,v11}	ppc64/le	servile	qemu 6.1.0	24
mips64eb-deb{v6,v7,v8,v9,v10}	mips64/be	servile	qemu 5.2.0	24	10
mips64el-deb{v6,v7,v8,v9,v10,v11}	mips64/le	servile	qemu 5.2.0	24	9
mips64elr6-debv10	mips64r6/le	servile	qemu 6.1.0	24	13		only abi=64 supported
s390x-gentoo	z196?	servile	qemu 5.2.0	24	15
s390x-deb{v7,v8,v9,v10,v11}	z196?	servile	qemu 6.1.0	24
alphaev{5,56,6,67}-gentoo	ev{5,56,6,67}	servile	qemu 6.1.0	24	9
hppa-gentoo		servile	qemu 6.1.0	24	9
m68k-gentoo		servile	qemu 6.1.0	24
riscv-gentoo		servile	qemu 6.1.0	24	9
sparc32-gentoo	sparcv8	servile	qemu 6.1.0	24	29
sparc64-gentoo	sparcv9	servile	qemu 6.1.0	24	29

Type-2 virtualised x86 and non-x86 full system emulation

The "user-mode" systems of the last section should primarily be used since they have much less overhead, and furthermore emulate many more CPU cores.

These full system emulation hosts are mainly useful for things which currently don't work in user mode. That is m68k, ppc64 using the 32-bit ABI and 64-bit instructions, mips64 using the n32 ABI, and sparc. Debugging is also sometimes easier with full systems emulation.

host	arch	running on	emulator	cores	ram	slowdown1	slowdown2	os/kern	notes
armel-debv8.sys	armv5tj	servus	qemu 2.12.1	1	256	30		gnu/linux deb 8
armhf-debv9.sys	armv7a+neon	servus	qemu 4.0.0	4	256	33		gnu/linux deb 9	primarily use system "tinker" via ashell
arm64-fbsd.sys	armv8a	servus	qemu 6.1.0	4	512	45		freebsd 13
arm64-nbsd.sys	armv8a	servus	qemu 6.1.0	4	512	45		netbsd 9.2_STABLE
arm64-debv10.sys	armv8a	servus	qemu 4.1.0	4	512			gnu/linux deb 10	primarily use system "odn2" via ashell
ppc32-debv8.sys	ppc32	servus	qemu 3.0.1	1	256			gnu/linux deb 8
ppc64eb-fbsdv12.sys	power8/be	servus	qemu 2.12.1	4	768			freebsd 12.2
ppc64eb-fbsdv13.sys	power9/be	servus	qemu 6.1.0	4	768			freebsd 13.0
ppc64eb-debv8.sys	power8/be	servus	qemu 3.0.1	4	512	(33)		gnu/linux deb 8
ppc64el-debv9.sys	power9/le	servus	qemu 20181126	4	512	47		gnu/linux deb 9
mips64eb-debv10.sys	mips64r2/be	servus	qemu 4.1.0	1	512	50		gnu/linux deb 10	use mainly for the n32 ABI, else mips64eb-debv10 above
mips64el-debv10.sys	mips64r2/le	servus	qemu 4.1.0	1	512	52		gnu/linux deb 10	use mainly for the n32 ABI, else mips64el-debv10 above
m68k.sys	mc68040	servus	aranym	1	256	38		gnu/linux deb 8
s390-debv10.sys	z13	servus	qemu 5.0.1	4	512			gnu/linux deb 10
sparc32-nbsd	sparcv8	osky	qemu 6.1.0	1	256	75		netbsd 9.2	only accessible by special means
sparc64-nbsd	sparcv9b	osky	qemu 6.1.0	1	512	75		netbsd 9.2	only accessible by special means

Table footnotes:

1. This slowdown factor is relative to each emulation host for GMP compilation, including emulator slowdown, and skewed by OS properties. The gcc versions might differ between host and guest, and gcc's speed varies from target to target.
2. This slowdown factor is relative to each emulation host for running GMPbench. This is unfair mainly when emulating a 32-bit system on a 64-bit host, since GMP is much more efficient with native 64-bit arithmetic.