spmd: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/spmd - from package: pvm-examples

You may install the required package with command apt-get install {package}
Error in other languages:
spmd: bevel nie gevind nie
spmd: comandă negăsită
spmd: comando não encontrado
spmd: commande introuvable
spmd: command not found
spmd: käsku ei ole
spmd: không tìm thấy lệnh
spmd: komanda nerasta
spmd: Kommando nicht gefunden.
spmd: kommandot finns inte
spmd: komut yok
spmd: nie znaleziono polecenia
spmd: níor aimsíodh an t-ordú
spmd: no se encontró la orden
spmd: no s'ha trobat l'ordre
spmd: opdracht niet gevonden
spmd: parancs nem található
spmd: perintah tidak ditemukan
spmd: príkaz nenájdený
spmd: příkaz nenalezen
spmd: команда не найдена
spmd: командата не е открита
spmd: 命令找不到
spmd: コマンドが見つかりません